URGENT: The Shop page on my website doesn’t work due to plugin issues

Hi. Recently, the Shop page stopped working on my website, and it simply loads a blank page. I got in touch with my host (Bluehost) and they told me that there is an issue with the Rank Math plugin. Here’s what they sent me:

[20-Dec-2022 19:54:18 UTC] PHP Fatal error: Uncaught Error: Class ‘RankMath\Module\Base’ not found in /home1/vxasmcmy/publichtml/pillowrebelscomau/wp-content/plugins/seo-by-rank-math/includes/modules/instant-indexing/class-instant-indexing.php:25
Stack trace:
#0 /home1/vxasmcmy/publichtml/pillowrebelscomau/wp-content/plugins/better-payment/vendor/composer/ClassLoader.php(571): include()
#1 /home1/vxasmcmy/publichtml/pillowrebelscomau/wp-content/plugins/better-payment/vendor/composer/ClassLoader.php(428): Composer\Autoload\includeFile(‘/home1/vxasmcmy…’)
#2 [internal function]: Composer\Autoload\ClassLoader->loadClass(‘RankMath\Instan…’)
#3 [internal function]: splautoloadcall(‘RankMath\Instan…’)
#4 /home1/vxasmcmy/publichtml/pillowrebelscomau/wp-content/plugins/seo-by-rank-math/includes/module/class-manager.php(480): classexists(‘RankMath\Instan…’)
#5 /home1/vxasmcmy/publichtml/pillowrebelscomau/wp-content/plugins/seo-by-rank-math/includes/module/class-manager.php(461): RankMath\Module\Manager->loadmodule(‘instant-indexin…’, Objec in /home1/vxasmcmy/publichtml/pillowrebelscomau/wp-content/plugins/seo-by-rank-math/includes/modules/instant-indexing/class-instant-indexing.php on line 25

You plugin : seo-by-rank-math, better-payment is causing the issue.

Can you please help me fix this? This is super urgent, since it’s my online store and it’s Christmas now!

Thank you very much.