cache issues?

HI,

After installing the plugin, I initially selected Tuesday mornings as available time slots.
Later, I wanted to add some more slots (Friday afternoon), but whatever I tried, they’re not displayed as available in the calendar.
I assumed it might be a cache problem, so I checked the “cache” checkbox, but when I try to save the setting, the cache checkbox reverts back to “unchecked”, and the issue in the calendar remains unchanged.

any help would be appreciated!

Thanks

Peter

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