Re 10.5.20 crashing on launch

Hi everyone,how are you?It’s Steve Fullerton I’ve updated to the latest 10.5.20 version.It’s been running well for the pass 4 months but but since last week it has been crashing on launch and I get this error message in the initiating "safe mode"screen …“The application was terminated with an error while executing the following file” …"Then it says “if the error persist please send the following log file to technical support” Does anyone knows how to fix this please? My system is: Acer
System Model Aspire TC-780
System Type x64-based PC
System SKU
Processor Intel® Core™ i5-7400 CPU @ 3.00GHz, 3000 Mhz, 4 Core(s), 4 Logical Processor (RAM) 12.0 GB…Thanks