I have a cell that accepts values => a numeric value of 105. Anything else causes an error: "Microsoft Excel has encountered a problem and needs to close....." It asks if I want to send a report - I tried, but got no response. When clicking the More Information button, I get:

Microsoft Error Reporting log version: 2.0

Error Signature:
Exception: EXC_BAD_ACCESS
Date/Time: 2018-11-05 21:48:52 +0000
Application Name: Microsoft Excel
Application Bundle ID: com.microsoft.Excel
Application Signature: XCEL
Application Version: 14.7.2.170228
Crashed Module Name: Gfx
Crashed Module Version: 14.7.2.170228
Crashed Module Offset: 0x0013ddf3
Blame Module Name: Gfx
Blame Module Version: 14.7.2.170228
Blame Module Offset: 0x0013ddf3
Application LCID: 1033
Extra app info: Reg=en Loc=0x0409
Crashed thread: 0

No other cells were found with this problem.

Can anyone tell me what's going on?