Try reseting your profile:

1. Exit chromium completely.

   
   



2. Go to Computer.

   
   



3. Select Go > Location.

   
   



4. Enter the following directory in the text field:

   
   

    ~/.config/google-chrome/
   
   

   
   



5. Locate the folder called "Default" in the directory window that opens and rename it as "Backup default."

   
   



6. Try opening Google Chrome again. A new "Default" folder is automatically created as you start using the browser.

   
   

If you wish, you can transfer information from your old user profile to your new one.

However, this action is not recommended, since a part of your old profile may be corrupt.

With that in mind, to transfer your old bookmarks, copy the Bookmarks.bak file from the Backup default folder to your new Default folder. Once moved, rename the file from Bookmarks.bak to Bookmarks to complete the migration.

All other browser data will remain in the Backup default folder, but you won't be able to transfer it to your new profile.