opening_hours value: error in plugin but parsed correctly by other evaluation tool

[Multimodaal]

Hi,
the following value (used to indicate a non-recurring temporal closure) is parsed correctly (as intended) by the opening_hours evaluation tool, but in the plugin it gives an "Error in timeformat"

Value:
open; 2022 Jul 11-2022 Aug 19 closed

Parsed correctly in the opening_hours evaluation tool :
​https://openingh.openstreetmap.de/evaluation_tool/?EXP=open%3B%202022%20Jul%2011-2022%20Aug%2019%20closed&lat=52.1568256&lon=4.5285376&mode=0&DATE=1659179400000

Screenshot of the error in this plugin:

Does the error lie in the value or in the plugin?
Thanks for looking at this

[mueschel]

This defect was also mentioned in the wiki recently:
​https://wiki.openstreetmap.org/wiki/Talk:Key:opening_hours#Broken_tools

As the plugin fails on the simplest rules like "Mo-Fr" and doesn't seem to be maintained for several years I suggest to deactivate it.

[GerdP]

I see no need to deactivate the plugin. I use it where it works and where not I simply don't care.
I agree that the plugin should produce a better message telling the user that only a limited set of syntax is implemented.