I agree, when a Kitchen area or dining table (High level) outlet goes "Dark" (no power) first suspect is a GFCI, not a breaker.
Then check breakers
Then if you have an inverter check for a second set of breakers (often on the inverter, Mine are not)
Short story. Got a HELP request, half the Outlets dead (including TV) as we walked to his RV I ask about an inverter. First he opened the access for the batteries, TOld him to try next door, There sat a lovely Tripplite Pure sine wave.. with one tripped breaker.
He went inside to check and his wife said "Can he help us?"
The reply was "He's already fixed it!"
How do I learn all this stuff... Well, read the above. only it was nly the inverter was a Prosine, and the breaker was on the sub panel.
Home was where I park it. but alas the.
2005 Damon Intruder 377 Alas declared a total loss
after a semi "nicked" it. Still have the radios
Kenwood TS-2000, ICOM ID-5100, ID-51A+2, ID-880 REF030C most times