diff --git a/src/adonisjs/app/Controllers/Http/v1/UserController.js b/src/adonisjs/app/Controllers/Http/v1/UserController.js
index 7742c19..b576d45 100644
--- a/src/adonisjs/app/Controllers/Http/v1/UserController.js
+++ b/src/adonisjs/app/Controllers/Http/v1/UserController.js
@@ -122,52 +122,60 @@ class UserController {
         eventRel = await Event.find(event_id)
 
       if (eventRel != null) {
-        const user = new User()
-
-        user.id = await uuidv4()
-        user.username = request.input('username')
-        user.email = request.input('email')
-        user.password = request.input('password')
-        user.login = request.input('login')
-        user.grade = request.input('grade')
-
-        const institution_id = request.input('institution')
-        let ins = null
-        if (institution_id != null)
-          ins = await Institution.findBy('acronym', institution_id)
-        if (ins != null)
-          user.institution_id = ins.id
-
-        await user.save(trx)
-        feedback += 'user ' + user.username + ' created'
-
-        /*
-        if (eventRel.role_id != null) {
-          console.log('=== linking role')
-          console.log(eventRel.role_id)
-          const ul = await User.find(user.id)
-          console.log(user.id)
-          const role = await Role.find(eventRel.role_id)
-          const roles = await ul.roles()
-          console.log('--- role found')
-          console.log(roles)
-          roles.attach(eventRel.role_id)
-          feedback += role.slug + ' role has given to the user ' + user.username + ';'
+        if (eventRel.active > 0) {
+          const user = new User()
+
+          user.id = await uuidv4()
+          user.username = request.input('username')
+          user.email = request.input('email')
+          user.password = request.input('password')
+          user.login = request.input('login')
+          user.grade = request.input('grade')
+
+          const institution_id = request.input('institution')
+          let ins = null
+          if (institution_id != null)
+            ins = await Institution.findBy('acronym', institution_id)
+          if (ins != null)
+            user.institution_id = ins.id
+
+          await user.save(trx)
+          feedback += 'user ' + user.username + ' created'
+
+          /*
+          if (eventRel.role_id != null) {
+            console.log('=== linking role')
+            console.log(eventRel.role_id)
+            const ul = await User.find(user.id)
+            console.log(user.id)
+            const role = await Role.find(eventRel.role_id)
+            const roles = await ul.roles()
+            console.log('--- role found')
+            console.log(roles)
+            roles.attach(eventRel.role_id)
+            feedback += role.slug + ' role has given to the user ' + user.username + ';'
+          }
+
+          if (eventRel.group_id != null) {
+            console.log('=== linking group')
+            console.log(eventRel.group_id)
+            const group = await Group.find(eventRel.group_id)
+            console.log('--- role found')
+            await user.groups().attach(eventRel.group_id)
+            feedback += group.title + ' group has assigned to the user ' + user.username
+          }
+          */
+
+          trx.commit()
+
+          return response.json(user)
+        } else {
+          trx.rollback()
+          console.log('expired authorization for self signin');
+          return response.status(500).json({
+            type: 'unauthorized',
+            message: 'expired authorization for self signin'})          
         }
-
-        if (eventRel.group_id != null) {
-          console.log('=== linking group')
-          console.log(eventRel.group_id)
-          const group = await Group.find(eventRel.group_id)
-          console.log('--- role found')
-          await user.groups().attach(eventRel.group_id)
-          feedback += group.title + ' group has assigned to the user ' + user.username
-        }
-        */
-
-        trx.commit()
-
-        return response.json(user)
       } else {
         trx.rollback()
         console.log('not authorized self signin');
diff --git a/src/adonisjs/database/migrations/1643056635459_user_update_column_username_schema.js b/src/adonisjs/database/migrations/1643056635459_user_update_column_username_schema.js
new file mode 100644
index 0000000..80e6154
--- /dev/null
+++ b/src/adonisjs/database/migrations/1643056635459_user_update_column_username_schema.js
@@ -0,0 +1,20 @@
+'use strict'
+
+/** @type {import('@adonisjs/lucid/src/Schema')} */
+const Schema = use('Schema')
+
+class UserUpdateColumnUsernameSchema extends Schema {
+  up () {
+    this.table('users', (table) => {
+      table.dropUnique('username')
+    })
+  }
+
+  down () {
+    this.table('users', (table) => {
+      table.unique('username')
+    })
+  }
+}
+
+module.exports = UserUpdateColumnUsernameSchema