You should go for the following approaches to manually fix crashed Outlook account:

Approach 1: Permanently Kill Outlook Ongoing Processes

Firstly, kill all the running processes for Outlook application by the following steps:

Browse Task Manager by pressing CTRL+ ALT + Delete.

Click on “ Processes ” option

” option Choose all the running processes related to:” Outlook ”, “ communicator ”, “ Lync ”, “ ucmapi ”

”, “ ”, “ ”, “ ” Click on End Task option to kill all Outlook processes.

Approach 2: Disenable Cache Mode

The Exchange cached mode might be enabled on your system, which may have crashed the application. Disable the cached mode in following way:

Exit Outlook application and open Control Panel. Browse Mail > Email Accounts > Email options. Select the account for which error is generated. Click on Change option to view settings. Unmark the Use Cached Exchanged Mode option. Click on Next and Finish to save the changes made.

Now, start Outlook application to access your account without any error.