Interrapt G35

Environment:
Browser: Google Chrome Version 136.0.7103.114
OS: Windows 11 64-bit
URL:https://qainterrapt.brainster.xyz/webinars/create

Steps to Reproduce:
1.Log in to the platform.
2.Navigate to the Mentors module.
3.Click on 'Create'
4.In the Name field, enter invalid characters
5.Fill in the remaining fields with valid data
6. Ckick on'Create'

Expected Result:
A validation message should appear: 'Invalid characters in name'
Form should not be submitted.
Mentor should not be created.

Actual Result:
No validation message is shown.
Mentor is created and appears in the mentors list.