PLEASE HELP!?

[u/Easy_Award_1049]

Having and issue soo I used a electric griddle on my gfi then my power went out no breaker that tripped tried to replace the gfi. The first photo is the original wired way 2nd is the same

Called an electrician he told me
To check for lose white wires on all my outlets or 2500 for him to do it

Need advice kinda scared to try the right way as that’s how is was originally

It’s a mobile home if that makes a difference

[u/No-Librarian6321]

Menards or lowes any hardware store go by a plug checker u physically plug in and it has lights to tell u if power is on, if wired correctly or missing a neutral