contacts app keeps crashing

[AC Question]

Had my Samsung edge S7 for 2 weeks now with no issues. I added my contacts manually as had a Microsoft phone before last night. Since then contacts app keeps closing when I try and edit or view numbers. I have tried deleting Cache from contacts and checking in safe mode but not sorted
can anyone help

 

[B. Diddy]

Welcome to Android Central! Were these contacts added to the local Phone account, your Samsung account, or your Google account?