diff --git a/back/volume/package-lock.json b/back/volume/package-lock.json
index 9ff4551..0a84acd 100644
--- a/back/volume/package-lock.json
+++ b/back/volume/package-lock.json
@@ -44,7 +44,7 @@
         "passport-42": "^1.2.6",
         "reflect-metadata": "^0.1.13",
         "rimraf": "^3.0.2",
-        "rxjs": "^7.2.0",
+        "rxjs": "^7.8.0",
         "socket.io": "^4.6.1",
         "source-map-support": "^0.5.21",
         "typeorm": "^0.3.12"
diff --git a/back/volume/package.json b/back/volume/package.json
index 4c539bb..753832b 100644
--- a/back/volume/package.json
+++ b/back/volume/package.json
@@ -56,7 +56,7 @@
     "passport-42": "^1.2.6",
     "reflect-metadata": "^0.1.13",
     "rimraf": "^3.0.2",
-    "rxjs": "^7.2.0",
+    "rxjs": "^7.8.0",
     "socket.io": "^4.6.1",
     "source-map-support": "^0.5.21",
     "typeorm": "^0.3.12"
diff --git a/back/volume/src/auth/auth.controller.ts b/back/volume/src/auth/auth.controller.ts
index 0033445..5103aba 100644
--- a/back/volume/src/auth/auth.controller.ts
+++ b/back/volume/src/auth/auth.controller.ts
@@ -18,7 +18,7 @@ import { Profile42 } from './42.decorator'
 import { AuthService } from './auth.service'
 import { UsersService } from 'src/users/users.service'
 import { EmailDto } from 'src/chat/dto/updateUser.dto'
-import User from 'src/users/entity/user.entity'
+import type User from 'src/users/entity/user.entity'
 
 const frontHost =
   process.env.HOST !== undefined && process.env.HOST !== ''
@@ -30,7 +30,7 @@ const frontPort =
     : '80'
 
 @Controller('log')
-export class AuthController { 
+export class AuthController {
   constructor (
     private readonly authService: AuthService,
     private readonly usersService: UsersService
@@ -42,10 +42,10 @@ export class AuthController {
     @Profile42() profile: Profile,
       @Body() body: EmailDto
   ): Promise<void> {
-    console.log('in')
     const email = body.email
-    const user = (await this.usersService.findUser(+profile.id)) as User
+    const user = (await this.usersService.getFullUser(+profile.id))
     user.email = email
+    console.log(`email sent to ${user.email}`)
     await this.usersService.save(user)
   }
 
diff --git a/back/volume/src/auth/auth.service.ts b/back/volume/src/auth/auth.service.ts
index 0db7907..6c3a64b 100644
--- a/back/volume/src/auth/auth.service.ts
+++ b/back/volume/src/auth/auth.service.ts
@@ -1,4 +1,4 @@
-import { Injectable } from '@nestjs/common'
+import { BadRequestException, Injectable } from '@nestjs/common'
 import { type User } from 'src/users/entity/user.entity'
 import { UsersService } from 'src/users/users.service'
 import { MailerService } from '@nestjs-modules/mailer'
@@ -25,16 +25,22 @@ export class AuthService {
 
   async sendConfirmationEmail (user: User): Promise<void> {
     user.authToken = Math.floor(10000 + Math.random() * 90000).toString()
+    console.log(`email sent to ${user.email}`)
     await this.usersService.save(user)
-    await this.mailerService.sendMail({
-      to: user.email,
-      subject: 'Welcome to ft_transcendence! Confirm Email',
-      template: 'confirm',
-      context: {
-        username: user.username,
-        code: user.authToken
-      }
-    })
+    try {
+      await this.mailerService.sendMail({
+        to: user.email,
+        subject: 'Welcome to ft_transcendence! Confirm Email',
+        template: 'confirm',
+        context: {
+          username: user.username,
+          code: user.authToken
+        }
+      })
+    } catch {
+      throw new BadRequestException("Email doesnt't seem to be valid")
+    }
+    console.log(`email sent to ${user.email}`)
   }
 
   async verifyAccount (code: string): Promise<boolean> {
diff --git a/back/volume/src/chat/chat.controller.ts b/back/volume/src/chat/chat.controller.ts
index d7b1031..bac2c0f 100644
--- a/back/volume/src/chat/chat.controller.ts
+++ b/back/volume/src/chat/chat.controller.ts
@@ -21,6 +21,7 @@ import type User from 'src/users/entity/user.entity'
 import type Channel from './entity/channel.entity'
 import { Profile42 } from 'src/auth/42.decorator'
 import { Profile } from 'passport-42'
+import { IsNumberString, IsPositive } from 'class-validator'
 
 @Controller('channels')
 @UseGuards(AuthenticatedGuard)
@@ -140,7 +141,9 @@ export class ChatController {
   ): Promise<void> {
     const channel = await this.channelService.getFullChannel(id)
     const user: User | null = await this.usersService.findUser(target.data[0])
-    console.log(target)
+    if (isNaN(+target.data[1])) {
+      throw new BadRequestException(`Invalid duration ${target.data[1]}`)
+    }
     if (user == null) {
       throw new NotFoundException(`User #${target.data[0]} not found`)
     }
@@ -167,6 +170,9 @@ export class ChatController {
   ): Promise<void> {
     const channel = await this.channelService.getFullChannel(id)
     const user: User | null = await this.usersService.findUser(mute.data[0])
+    if (isNaN(+mute.data[1])) {
+      throw new BadRequestException(`Invalid duration ${mute.data[1]}`)
+    }
     if (user == null) {
       throw new NotFoundException(`User #${mute.data[0]} not found`)
     }
diff --git a/back/volume/src/chat/chat.gateway.ts b/back/volume/src/chat/chat.gateway.ts
index 2c0c793..79062ae 100644
--- a/back/volume/src/chat/chat.gateway.ts
+++ b/back/volume/src/chat/chat.gateway.ts
@@ -138,8 +138,8 @@ export class ChatGateway implements OnGatewayConnection, OnGatewayDisconnect {
     const user = (await this.userService.findUser(kick.to)) as User
     const connect = (await this.connectedUserRepository.findOneBy({
       user: user.ftId
-    })) as ConnectedUser
-    if (connect) {
+    }))
+    if (connect !== null) {
       console.log(`kicking ${user.username} from ${channel.name} with socket ${connect.socket}`)
       this.server.to(connect.socket).emit('kicked')
     }
diff --git a/back/volume/src/main.ts b/back/volume/src/main.ts
index 2f9ab51..6f9dc7b 100644
--- a/back/volume/src/main.ts
+++ b/back/volume/src/main.ts
@@ -1,4 +1,4 @@
-import { InternalServerErrorException, Logger } from '@nestjs/common'
+import { InternalServerErrorException, Logger, ValidationPipe } from '@nestjs/common'
 import { NestFactory } from '@nestjs/core'
 import { AppModule } from './app.module'
 import * as session from 'express-session'
@@ -15,13 +15,17 @@ async function bootstrap (): Promise<void> {
       ? +process.env.BACK_PORT
       : 3001
   const cors = {
-    origin: new RegExp(`^(http|ws)://${process.env.HOST ?? 'localhost'}(:\\d+)?$`),
+    origin: new RegExp(
+      `^(http|ws)://${process.env.HOST ?? 'localhost'}(:\\d+)?$`
+    ),
     methods: 'GET, HEAD, PUT, PATCH, POST, DELETE, OPTIONS',
     preflightContinue: false,
     optionsSuccessStatus: 204,
     credentials: true,
-    allowedHeaders: ['Accept', 'Content-Type', 'Authorization']
+    allowedHeaders:
+     ['Accept', 'Content-Type', 'Authorization']
   }
+  app.useGlobalPipes(new ValidationPipe())
   app.use(
     session({
       resave: false,
diff --git a/front/volume/src/Auth.ts b/front/volume/src/Auth.ts
index 56d9c6e..8323321 100644
--- a/front/volume/src/Auth.ts
+++ b/front/volume/src/Auth.ts
@@ -31,6 +31,7 @@ export function login() {
 }
 
 export async function verify() {
+  if (get(store).twoFa === true) return;
   let email : string;
   await show_popup("Enter your preferred email adress:\n(defaults to 42 email)")
   email = get(content);
@@ -46,7 +47,6 @@ export async function verify() {
     })
     if (response.ok) {await show_popup("Email set",false)}
     else {await show_popup("Couldn't set Email",false); return }
-   console.log(response.ok)
 }
   console.log(API_URL)
   const response = await fetch(API_URL + "/log/verify", {
@@ -56,9 +56,11 @@ export async function verify() {
   });
   console.log(response.ok)
   if (response.ok) {
-  console.log("here")
+  console.log("here") 
   await show_popup("We have sent you an email to verify your account. Check your mailbox!.", false);
-  } else { await show_popup("Email doensn't seem valid", false);}
+  } else {
+  console.log("there") 
+  await show_popup("Email doensn't seem valid", false);}
 
 
 }
diff --git a/front/volume/src/components/Alert/Alert.svelte b/front/volume/src/components/Alert/Alert.svelte
index 8006adf..8ceb35b 100644
--- a/front/volume/src/components/Alert/Alert.svelte
+++ b/front/volume/src/components/Alert/Alert.svelte
@@ -5,7 +5,7 @@
   export let onOkay = () => {};
   import { content, popup } from "./content";
 
-  let value;
+  let value = '';
   let onChange = () => {
     $content = "";
   };
diff --git a/front/volume/src/components/Alert/content.ts b/front/volume/src/components/Alert/content.ts
index 2813a6c..dfbf7d7 100644
--- a/front/volume/src/components/Alert/content.ts
+++ b/front/volume/src/components/Alert/content.ts
@@ -10,8 +10,7 @@ export async function show_popup(message, form = true) {
         message,
         form
     }))
-     await waitForCondition()
-     await waitForCondition()
+    await waitForCondition()
 }
 
 export async function waitForCondition() {
@@ -25,5 +24,5 @@ export async function waitForCondition() {
              return await checkFlag();
       }
     }
-    return   checkFlag()
+    return await checkFlag()
 }
diff --git a/front/volume/src/components/Chat.svelte b/front/volume/src/components/Chat.svelte
index 58dcbad..101f45a 100644
--- a/front/volume/src/components/Chat.svelte
+++ b/front/volume/src/components/Chat.svelte
@@ -210,6 +210,8 @@
         "Enter a time for which the user will be banned from this channel"
       );
       const duration = $content;
+      if (duration == "") 
+        return;
       response = await fetch(API_URL + "/channels/" + channel.id + "/ban", {
         credentials: "include",
         method: "POST",
@@ -217,16 +219,15 @@
         headers: {
           "Content-Type": "application/json",
         },
-        body: JSON.stringify({ data: target.ftId, duration }),
+        body: JSON.stringify({ data: [target.ftId, duration] }),
       });
       if (response.ok) {
         await show_popup(`User banned for: ${duration} seconds`, false);
         socket.emit("kickUser", channel.id, $store.ftId, target.ftId);
       } else {
-        const error = await response.json();
-        await show_popup(error.message, false);
-      }   
-      socket.emit("kickUser", channel.id, $store.ftId, target.ftId);
+         const error = await response.json();
+        await show_popup(error.message, false)
+      } 
     }
   };