Thanks for the replies. I didn't want to dive into the generated code, since the workflow for ready2_animate should not require this. But with the help of other forums I found the solution and I will post it here, if someone comes across the same issue.
If one loads a path table, it is persisted in this file: `KRC:\R1\TP\ready2_animate\Ready2_Animate_Globals.dat` (see attached screenshot)
So, even if one restarts the robot, the path tables will still be loaded. You need to explicitly unload the path table in your KRL Program.
To get rid of the error, I unload all previously loaded tables and in a new program, I unload the path table after the animation has been run. If an animation is interrupted during the execution and the program does not reach the point, where the table is unloaded, I use another little program which just unloads this particular table.