1. First of all check "Settings of the user's Project Professional"
a) Account Name: Company PWA
b) Project server URL: "they would be different in different cases" like https://company.bemopro.com/PWA
2. Secondly check your Saved Credentials, that is in the following location of your computer:
Control Panel --> All Control Panel Items --> Credential Manager "In case you find any Credentials simply delete it"
If you still facing problem, feel free reach out to us