Help with my car

[Peted123]

Codes are
P0420
P0300
P0301
P0302
P0056
U0100

2011 Buick enclave cxl
Car will turn over but won’t run any more. Check engine light has been on and flashing. Made some changes on the catalytic converters, I’m about to change out the other 2 02 sensors.

Ecm 1 fuse keeps blowing with key in the on position

 

[2021 Envision Essence]

You're throwing parts at it without a valid diagnosis. It's possible that one bad component is affecting several others, hence the multiple codes. I hate to say it, but you're gonna need a dealer or qualified mechanic to fully diagnose the issue(s). At this point, you might be throwing away money "shotgunning" the problem.