Invalid drum patch. Can’t start op-1!

I recently patched a few drum patches that were working just fine, made a few songs with them and everything seemed great. But this time when I booted up my op-1 it doesn’t go past the boot up screen, it only says “Invalid drum patch, error 24” and then a bunch on random code. Does anyone have a fix?

hold the com button when powering the OP1 and try to Install the OS again (this won’t delete your settings) but if this doesn’t help you should try a factory reset and start from scratch

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Had to factory reset… but i am now up and running.