I received an official response from a support PokerStars, they recommend reinstalling the application
Hello,
In this case, in order to solve your technical problem, we advise that you re-install our software.
You may wish to make a copy of "user.ini" (your preferences) and "notes.user.xml" (where 'user' is your Stars ID) from the settings folder as they will be removed when you uninstall the software. To do this simply open our software (if possible) and click on "Help" -> "Open My Settings Folder" and click "Open My Settings Folder" button, then locate those two files and copy them to a safe temporary location. If you cannot open the software you will need to manually navigate to the settings folder to locate those files.
For Windows Vista, Windows 7, Windows 8 and Windows 10:
1. Press the Windows Key + R (at the same time)
2. Type the following or copy/paste into the Area provided and press Enter:
%USERPROFILE%\AppData\Local
3. Locate and open your poker client folder
4. Locate "user.ini" or "user" and "notes.user.xml"
5. Copy the files to a safe temporary location (the desktop is a good choice)
Once you have made a copy of those files, uninstall our software from your computer.
In Windows 10, go to Start -> Settings -> System ->
Apps & Features. Use the search bar to find our software or scroll down the list. Then select the program and click on the 'Uninstall' button.
When the program is fully uninstalled please restart your computer. When the computer has restarted, download and install a fresh copy of the software.
Be sure to restore the two saved files once reinstalled. To do this, please go to the "Help" menu and then back to "Open My Settings Folder" and click "Open My Settings Folder" button, then close the client and copy the files back into the folder. If you are asked to overwrite any files accept. You should then have no additional problems.