Website stopped working after X Theme update and Cornerstone Plugin Update

[SHAVER]

Cornerstone Plugin could not be activated because it triggered a fatal error .
Fatal error : Call to undefined method ReflectionParameter::getType() in /home/qanefsm8kgmi/public_html/wp-content/plugins/cornerstone/includes/classes/Plugin.php on line 105

Website reallifechurch.me

[prakash_s]

Hello @SHAVER,

Thanks for writing to us.

It might be the issue of version compatibility. I would suggest you please make sure your WordPress core and PHP version are updated as per our version compatibility page.

I would suggest you troubleshoot with a few of the common issues before we investigate your settings.

1. Testing For Theme Related Issue
2. Testing For Plugin Conflict
3. Theme Update
4. Child Theme
5. Css/Js Customization
6. Increasing Php Memory Limit
7. Disabling Cache
8. Disabling Cdn
9. Permalinks
10. Version Compatibility

If none of those work, It would be best if you could copying your live website to your staging area. and send your details in a secure note so that we can investigate your setting without breaking your live site. Please provide the following details

• WordPress Login URL [Staging Server]
• Admin level username and password
• FTP Details [Staging Server]

You can find the Secure Note button at the bottom of your posts

Thanks