Could you please try to delete $CELLS_WORKING_DIR/services/pydio.grpc.tasks/fifo-*
Where $CELLS_WORKING_DIR by default is /var/cells
Then restart cells service
Could you please try to delete $CELLS_WORKING_DIR/services/pydio.grpc.tasks/fifo-*
Where $CELLS_WORKING_DIR by default is /var/cells
Then restart cells service