3 Sync errors ... what am I doing wrong... how do I resolve it?

Whenever I upload or sync files, I get these 3 errors.

I’m a luddite for the most part, but if given clear instruction I can take on this challenge.

Thing is so far the instructions I’ve read don’t make any sense to me haha

the errors:

  • The PHP module ‘fileinfo’ is missing. It is strongly recommended to enable this module to get the best results with MIME type detection.

  • Some files have not passed the integrity check. Further information on how to resolve this issue can be found in the documentation. (List of invalid files… / Rescan…)

  • Accessing site insecurely via HTTP. You are strongly adviced to set up your server to require HTTPS instead, as described in the security tips.