Uploading images is not possible

[jorgesat]

Describe the bug

An error message is shown when trying to upload any image (post, community icon, instance icon). The message is the following:

SyntaxError: JSON.parse: unexpected character at line 1 column 1 of the JSON data

Context

• Hardware: VPS bought online
• YunoHost version: 11.0.9.14
• I have access to my server: Through SSH | through the webadmin
• Are you in a special context or did you perform some particular tweaking on your YunoHost instance?: no
• Lemmy version: 0.16.7

Steps to reproduce

• Install an instance.
• Try to upload instance icon or banner, or try to upload an image to be posted.

Expected behavior

The instance should be able to accept image uploads.

Logs

Lemmy service log here: https://paste.yunohost.org/uhehososov