Bug: Incorrect URL Validation on First Name, Last Name and Affiliation section

**Description:**
When attempting to update the profile, if changes are made to the First Name, Last Name, or Affiliation fields, the update fails.
An error message is shown (as seen in the image below). Other fields (like username or social links) update correctly. This issue only occurs when one of the above fields (First Name, Last Name, or Affiliation) is modified.

**Steps to Reproduce:**

- Go to the "Update Profile" page.

- Modify the First Name, Last Name, or Affiliation field.

- Click the "Submit" button.

- See an error message, shown in the image.

**Expected Behavior:**
The profile should update successfully when valid First Name, Last Name, or Affiliation values are provided.

**Actual Behavior:**
The profile update fails with a general error message whenever First Name, Last Name, or Affiliation is changed.

Additional Notes:
Other fields (like username and social links) work fine when updated.