BOT WORKS! BUT... If you start the bot right next to a banker, it will crash before you have the chance to select the bones. To get it working; start the bot AWAY from the banker, then pause the bot, then select the bones you want to bury, THEN move next to banker and press play. Bot works perfectly after that.
The bot should definitely be working, and is on my end/for everyone else it seems.
There isn't a ton of info here, but often these kinds of issues can be fixed by restarting OSRS & Runemate (or your PC).
You could also try try disabling all plugins (besides some like GPU plugin) as some can interfere with bots (you can make a separate profile on Runelite with your current plugins saved, for using when not botting).
Feel free to test using the trial version so you don't get charged, and let me know if the issue persists.