Error after instaling the plug in

Hello,

Thank you for contacting Rank Math and bringing your concern to our attention. I’m sorry for any inconvenience this issue may have caused you.

I’ve checked your site, and it seems that Rank Math is not activated at the moment.

You can check with your web host for existing backups on your site to revert the changes you have applied.

Meanwhile, for initial troubleshooting, assuming you are using the latest version of all the plugins and the themes (please update if not yet), this could be caused by conflicting plugins or theme.

To determine that, please follow this troubleshooting guide:
https://rankmath.com/kb/check-plugin-conflicts/

Here is a video you can follow as well: https://www.youtube.com/watch?v=FcIWRhcUP2c

Only the site admin would know and your users won’t be affected by this troubleshooting.

Let us know how this goes.

Thank you.