I have a Drupal 7 website that I upgraded from Drupal 6 awhile ago. I am trying to upgrade some of the modules that have had updates since then, but I am having issues doing so. When I click the "Continue" button on the "ready to update" screen, I receive the following unformatted text on a blank white background:
Installing updates
Status message
Operating in maintenance mode.Go online.
The url of the page is example.com/authorize.php?batch=1&op=start&id=4206
I checked the error logs in Drupal, and there are a few errors reports:
Notice: Undefined variable: finished in _batch_process() (line 344 of /home/mysite/public_html/includes/batch.inc).
Notice: Undefined variable: old_set in _batch_process() (line 339 of /home/mysite/public_html/includes/batch.inc).
Notice: Undefinedvariable: old_set in _batch_process() (line 338 of /home/mysite/public_html/includes/batch.inc).
Notice: Undefined variable: old_set in _batch_process() (line 337 of /home/mysite/public_html/includes/batch.inc).
Notice: Undefined index: init_message in _batch_progress_page_js() (line 136 of /home/mysite/public_html/includes/batch.inc).
Notice: Undefined index: error_message in _batch_progress_page_js() (line 135 of /home/mysite/public_html/includes/batch.inc).
Notice: Undefined index: title in _batch_progress_page_js() (line 127 of /home/mysite/public_html/includes/batch.inc).
Any ideas on what might be causing this and how I an fix it?