Volume /storage/brno1 is filled to 100 percent. Moreover, there is also probably damaged the file system, so the volume is not currently suitable for working with the data. Please use the volumes /storage/brno2 (11TB available) and /storage/plzen1 (27TB available) for your work. Unfortunately I cannot estimate the time needed for repair so far.
In this context I would like to ask you to delete all unnecessary files stored in mentioned volumes.