There's an error in the plugin Photo Gallery that your site is using. In order to fix this, you'll have to deactivate or delete this plugin. In order to deactivate or delete this plugin, please follow the following steps:
- Log in to your website's cPanel or use FTP to access your website's files.
- Navigate to
- Look for directory called
photo-gallery and rename it to something else.
Now, that faulty plugin will be deactivated and your website should work properly considering nothing else is broken.
To get back the gallery plugin, I recommend you backup and delete the directory you just renamed. Then go to
/wp-admin of your website > Plugins > New and search for "Photo Gallery by 10Web". Install the plugin with title "Photo Gallery by 10Web – Mobile-Friendly Image Gallery" and you should have your gallery plugin back.
While doing so, I recommend you update all the plugins and the core WordPress while you are at it. To do so:
- Backup your website.
- Go to
/wp-admin/ > Dashboard > Updates to update WordPress, plugins and themes.
I hope this will solve your issues and if you have any questions regarding this solution, you can ask in comments to this answer.