i have problem with large forms and events 500 error

hello guys,
i have big problem
i had make form and i think its large form there's 12 section and alots of events to read and write data
so today i came to edit and i can not get in it it show me
"[h1]Sorry, that didn’t work. Please try again or come back later.[/h1][h2]500 Error. Internal Server Error."[/h2]
​
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so please can u help me
best regards
zaher

you can download backup from here to see whats problem
https://drive.google.com/file/d/1gCHc3gTTbAZMfcF4qDh_EAIP4m7ltyNW/view?usp=sharing

Works for me, change your server settings it might be exceeding your max_execution_time or somesuch.