I had similar symptoms - application stopping after a few seconds after the update to NP++ 8.3.1, although I didn’t get an error pup-up. I found it was caused by the plugin “Task List”. I see you have that plugin too.
To resolve, I had to open NP++ with only a blank document (as soon as there is any text it crashes) and uninstall “Task List”. To be able to do this, you may have to delete your session file, “…\AppData\Roaming\Notepad++\session.xml”
Any files you had opened in your session will be in “…\AppData\Roaming\Notepad++\backup” so you shouldn’t lose anything.
Hope this helps.