PHP Fatal error: Allowed memory size of 4294967296 bytes exhausted

I checked the php-fpm log and received the following message:

PHP Fatal error:  Allowed memory size of 4294967296 bytes exhausted (tried to allocate 28672 bytes) in /home/xxx.com/public_html/xxx/includes/cache.inc on line 361
 PHP Fatal error:  Allowed memory size of 4294967296 bytes exhausted (tried to allocate 262144 bytes) in /home/xxx.com/public_html/xxx/includes/database/database.inc on line 731
 PHP Fatal error:  Allowed memory size of 4294967296 bytes exhausted (tried to allocate 16384 bytes) in /home/xxx.com/public_html/xxx/includes/cache.inc on line 449
 PHP Fatal error:  Allowed memory size of 4294967296 bytes exhausted (tried to allocate 16384 bytes) in /home/xxx.com/public_html/xxx/includes/cache.inc on line 449
 PHP Fatal error:  Allowed memory size of 4294967296 bytes exhausted (tried to allocate 16384 bytes) in /home/xxx.com/public_html/xxx/includes/cache.inc on line 449
 PHP Fatal error:  Allowed memory size of 4294967296 bytes exhausted (tried to allocate 20480 bytes) in /home/xxx.com/public_html/xxx/includes/cache.inc on line 449
 PHP Fatal error:  Allowed memory size of 4294967296 bytes exhausted (tried to allocate 16384 bytes) in /home/xxx.com/public_html/xxx/includes/cache.inc on line 449
 PHP Fatal error:  Allowed memory size of 4294967296 bytes exhausted (tried to allocate 32768 bytes) in /home/xxx.com/public_html/xxx/includes/database/database.inc on line 2284

My current php.ini file is as follows:

PHP version:	7.4.33
MySQL version:	10.5.22 (10.5.22-MariaDB-log)
PHP memory_limit:	4G
PHP post_max_size:	16M
PHP upload_max_filesize:	4M
PHP max_input_vars:	1000
PHP max_execution_time:	60

Please help me!!