With OldCombatMechanics, every time i eat a golden apple, the numbers of gaps dont decrease, like if i have 10 gaps, i eat one, its still 10. also whenever i right click fishing rod, it doesnt cast the rod at all.

Those sound like two different issues that should be separated into two tickets.

• What Minecraft server version are you running?
• What OCM version are you using?
• Are there any errors in the console?
• What is your config?

Please upload your server log and config file to https://pastebin.com or https://hastebin.com

Abandoned issue report, closing.