Allowed memory size of 268435456 bytes exhausted (tried to allocate 12288 bytes) [closed]

my website never showing and i get this message Fatal error: Allowed memory size of 268435456 bytes exhausted (tried to allocate 12288 bytes) in /home/cryotecm/public_html/wp-includes/class-wp-scripts.php on line 523 even i changed all memoery size in files i still get this message how can i fix it

change all max memory to 256m

source https://stackoverflow.com/questions/76656054/allowed-memory-size-of-268435456-bytes-exhausted-tried-to-allocate-12288-bytes