Twilio extension installation problem - php query (I think!)
These two are warnings, not fatal errors. It's possible that they are harmless, and likely that they indicate that the extension is not yet configured.

Both report that the glob() for files returned something other than an array - which suggests that glob returned FALSE, meaning either the path searched didn't exist or the web user's permissions didn't allow CiviCRM to scan for files there.

First off, I'd make sure the extension is configured properly. If that didn't solve the issue, I'd add some debug code to see what the return value of glob() is before treating it as an array, and if the return value isn't an array to produce a helpful error message.

If that sounds too complex, you could open an issue on the Github project for Twilio, and refer the authors to this extension.