Hello,
Thank you for creating a topic on our support forum.
Your PHP memory limit now set to 128MB. You can check it in WooCommerce -> System Status.
And we see that your server is to slow. With default theme your shop page server response is 3s+ and it is not normally. You must increase all server PHP limits (post max size, memory limit, timeout) and check its perfomrance. We suggest you contact server providers for help in this question.
Regards