1. in notes - in ./class/NotesHelper.php change line 230 from:
$myts = new MyTextSanitizer();
to:
$myts = new \MyTextSanitizer();
2. There are several problems with the template definitions in ./xoops_version.php
change line 431 from:
['file' => 'yogurt_Notebook.tpl', 'description' => _MI_YOG_PICTURE_TEMPLATENOTEBOOKDESC],
to:
['file' => 'yogurt_notebook.tpl', 'description' => _MI_YOG_PICTURE_TEMPLATENOTEBOOKDESC],
change line 433 from:
['file' => 'Seutubo.tpl', 'description' => _MI_YOG_PICTURE_TEMPLATESEUTUBODESC],
to:
['file' => 'yogurt_seutubo.tpl', 'description' => _MI_YOG_PICTURE_TEMPLATESEUTUBODESC],
change line 435 from:
['file' => 'Tribes.tpl', 'description' => _MI_YOG_PICTURE_TEMPLATETRIBESDESC],
to:
['file' => 'yogurt_tribes.tpl', 'description' => _MI_YOG_PICTURE_TEMPLATETRIBESDESC],
You'll then need to either update or reinstall the module for the references to the template changes to be updated
3. To solve the problem when trying to view other profile by using
http://localhost/11/modules/yogurt/index.php?uid=2 with the Class 'XoopsModules\Yogurt\Yogurt\Visitors' not found
Go to ./class/VisitorsHandler.php and any place you find
new Yogurt\Visitors()
replace it with
new Visitors()
I haven't had time to look at everything you found but hopefully this will get you past these problems and on to finding some more....