Hello,
Thanks for developing an awesome WordPress Plugin.
I have been using this plugin since 2018. But, when I update it to 6.4.10, my WordPress admin panel not working (Shows “503 Time out Error”). The plugin updated successfully. I also tried 6.4.9, but faced same problem.
After all, 6.4.7 is working fine so I have to downgrade it manually.
I have two questions?
1. How can I solve this problem?
2. Can I backup my all quiz in this plugin?

The page I need help with: [log in to see the link]