Export does not work anymore

[yaqwa]

Hi , normally i export new books to a folder of my HDD. Works fine until last version. There i get the following message:

calibre, version 5.8.0
FEHLER: Fehler während des Speicherns: Speichern aller Bücher auf Datenträger gescheitert. "Details anzeigen" anklicken für weitere Informationen

Speichern fehlgeschlagen: Fehler:
Traceback (most recent call last):
File "calibre\library\save_to_disk.py", line 279, in get_path_components
File "calibre\library\save_to_disk.py", line 244, in get_components
File "calibre\utils\formatter.py", line 862, in unsafe_format
TypeError: evaluate() missing 1 required positional argument: 'global_vars'

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
File "calibre\gui2\save.py", line 128, in do_one_collect
File "calibre\gui2\save.py", line 136, in collect_data
File "calibre\library\save_to_disk.py", line 285, in get_path_components
ValueError: Pfadberechnung zum Speichern auf Datenträger fehlgeschlagen. Vorlage: {author_sort}/{title}/{title} - {authors}
Fehler: evaluate() missing 1 required positional argument: 'global_vars'

[capink]

Update to 5.8.1. And if you are running from source make sure to update that as well.