Try manually resetting your plugins (no Dashboard access required). If that resolves the issue, reactivate each one individually until you find the cause.
If that does not resolve the issue, access your server via SFTP or FTP, or a file manager in your hosting account’s control panel (consult your hosting provider’s documentation for specifics on these), navigate to /wp-content/themes/ and rename the directory of your currently active theme. This will force the default theme to activate and hopefully rule-out a theme-specific issue (theme functions can interfere like plugins).
Amazing!! Ill try,
Will i need to place my site under maintenance when fixing this; will it affect active plugins/my theme?
No, just follow the steps above, that should help you to isolate the problem.
I renamed the file,
and all my plugins have now disappeared (still renamed). Sorry I’m just confused what i do now?
Only redownload plugins applicable to my site?
ALL GOOD I DID IT! 🙂 THANK YOU SO MUCH!