Greetings,

got a gallery dumped in my lap without any information from the previous admin - it was installed in 2019 and is running v2.9.5 with a (probably modified) Bootstrap Default theme.

I have duplicated the site, cleared caches and after removing two outdated plugins (Menalto2Piwigo and RV Maps&Earth) migrated without problems to version 12.3.0.
Since I was told during the update that the theme is outdated, I have switched to Bootstrap Darkroom and then deleted Bootstrap Default.

Now I get 3 Warnings and one Fatal error:

Fatal error: Uncaught --> Smarty: Unable to load template 'file:menubar.tpl' <-- thrown in /.../stage.fotos.him1.de/include/smarty/libs/sysplugins/smarty_internal_template.php on line 195

Re-uploading the old theme removes this error - but I can't seem to change the theme. It keeps showing the old theme (which is not really a problem, but I would like to be able to use Bootstrap Darkroom)

I also noticed that in the old piwigo backend, there was a menu item Configuration > Templates which had the following content (most likely the customization?):

Substitutes (customised templates)     Original templates     Optional URL keyword     Bound Theme
distributed/HiM-header.tpl                   header.tpl                  ---------                          bootstrapdefault


How can I remove / reintegrate the customizations in the new template?


Thanks,
Richard

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    Piwigo 12.3.0 Check for upgrade
    Operating system: Linux
    PHP: 7.3.33-nmm2 (Show info) [2022-09-09 18:02:07]
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Piwigo URL: https://stage.fotos.him1.de/
(Live site: https://fotos.him1.de/  )