Fatal error: Allowed memory size of 1073741824 bytes exhausted (tried to allocate 20480 bytes)

[skinnybloke]

My Prestashop v9.0 website has just moved from CentOS 8 to Almalux 8.

I get a white screen when I go to the first checkout page. When I turn on debug I get the following error:

Fatal error: Allowed memory size of 1073741824 bytes exhausted (tried to allocate 20480 bytes) in /home/public_html/vendor/smarty/smarty/libs/sysplugins/smarty_internal_template.php on line 291

Fatal error: Allowed memory size of 1073741824 bytes exhausted (tried to allocate 40960 bytes) in Unknown on line 0

I do not get this error on my v9.0 staging site. I cannot see any difference between the two.

Anybody got any suggestions?