problems with open InDesign

As others said - try to reset preferences:

https://community.adobe.com/t5/indesign-discussions/reset-indesign-preferences-and-other-troubleshooting/m-p/11990234?search-action-id=432668503145&search-result-uid=11990234 

If it doesn't help - downgrade to previous version. 

Does the program start if you log in on your computer using a different user? That indicates something in your user data is to blame and Derek's suggestion should help. Does it launch if you start the computer in Safe Mode? That indicartes a software conflict with something else that is running.

Did the program close unexpectedly (crash) before this started? If it did you may have corrupt recovery data that is causing the program tto crash again on launch. Clearing the InDesign Recovery folder (a hidden folder in  your user profile) should help.

Which version of InDesign and OS?

How much RAM and spare hard disk capacity do you have?

Have you tried resetting the InDesign preferences back to the factory defaults:

1) Close InDesign
2) Double-click on the Adobe InDesign's icon to launch it
3) QUICKLY hold down Ctrl+Alt+Shift. (for Windows) or CTL+OPT+CMD+Shift (for Mac OS X)
4) When a dialogue box appears, asking you “Delete InDesign Preference Files?” Click Yes.

(If you don't see the question do it again.)