Hi @bozidar.petrinec,
Could please let us know what theme are you trying to install so we can reproduce the issue?
Apart from this, __We have a Support Tool that will gather relevant information for us to analyze your configuration. Could you please download and execute it on the machine where the stack is running by following the steps described in the guide below?
How to Run the Bitnami Support Tool
Please note that you need to paste the code outputted by the tool in your reply.