see i've already done that and it keeps happening...what should I do now :/
If this is happening when you start Photoshop. Stop Photoshop. Then use finder and set the mac settings to search for hidden files and find "Actions Palette.psp" rename that file so it still exists and occupies the space allocate to it. Then start Photoshop it should not find the renamed file and create a new default "Actions Palette.psp" file one with only the default action set loaded. You should not get the message. Next start loading you action sets one at a time. They should load without any error message. Once all are loaded close down Photoshop and the restart Photoshop. You should not get the error message and all your actions should be in the Actions palette.