Please help us help you and fill where relevant:
LimeSurvey version: 6.16.17
Own server or LimeSurvey Cloud: own server hosted on Infomaniak
Survey theme/template: anything that needs to upload images and use KCFinder. example: image select multiple choice.
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Since I updated to this version (and PHP8.4) i can't use KCFinder.
It appears like this and not possible to upload (see attached image).
help!