Ive recently migrated my wordpress site to a new ubuntu 20.04 droplet. Im using nginx + mysql and using cloudflare as a cdn. I keep getting 504 errors from cloudflare and when i log in to the console there is a string of out of memory errors for mysql. The Digital ocean dashboard shows 100% cpu usage but after waiting for a few minutes or rebooting the server the issue stops. Is there a way for me to check what is using up all the memory / cpu ? This seems to happen mainly when i login and change something in wp-admin like updating a post, page or a product but that’s not always the case.
Any help would be greatly appreciated.

My site is www.themusicvault.co.uk

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  • If you didn’t make any changes to your Cloudflare settings before this started happening, it must be something on the origin server that is causing this. You should check there for error logs.

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Happened again this morning and i had to reboot the server via console. Here are some screenshots of the graph on the digital ocean dashboard
https://drive.google.com/drive/folders/1t-FFv8akb37wrbvykDI3f4tuy-OB4qL_?usp=sharing

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