Interrapt G35

The 'High School' field in the attendee registration form does not have proper input validation. It allows:
-Input exceeding 50 characters
-Use of numbers
-Use of special characters

Environment
OS Windows 10 Pro
Google Chrome Version 137.0.7151.56 (Offizieller Build) (64-Bit)
https://qainterrapt.brainster.xyz/attendees/create

Pre-conditions
User must be logged in as admin

Steps to reproduce
Navigate to the 'Attendees' page
2. Fill in the 'Name' field with valid data
3. Fill in the 'Surname' field with valid data
4. Fill in the 'Email' field with valid data
5. Fill in the 'Phone' field with valid data
6. Fill in the 'City' field with valid data
7. Fill in the 'High School' field with invalid data
8. Fill in the 'Faculty' field with valid data
9. Select a webinar from the 'Webinar' drop-down menu
10. Click the 'CREATE' button
11. Observe

Expected Result
An attendee should not be created.

Actual Result
The system accepts invalid input in the 'High School' field and successfully registers the attendee.
This permits unrealistic or invalid data to be stored in the system, such as:
Орце Николов123456789010111213141516!"§$%&/()=?`*'_!!""$$""§§!§§"§§"$§%%&&DFDGFHCHGFCHGFHGFHGFHGFCVHJFHFHJGF