I am continually getting 500 and 504 database errors and the dashboard is extremely slow - if I even get access to it at all. I am unable to update plugins from anywhere and receive failure notices from both wordpress and our hosting page.
What are some tips to improve speed and accessibility to my site?
Please refer this tip:
https://vibethemes.com/documentation/wplms/knowledge-base/wplms-with-w3-total-cache/
Also try deactivating the envato market plugin.
Also try using CDN services for loading images.
This seemed to have helped. Thank you!