There was error during configuration saving.

I have had to manually add some values in the options table, and I finally got the calendar to save events. However I’m still having trouble with getting the settings to save. Every time I load the Settings page I get the message

“There was error during configuration saving. Last stable configuration restored.
Error report saved to “com_scheduler_log.xml””

I have no idea where this log file is being saved. I had to manually add the scheduler_xml and scheduler_php to the options table. Default options were loaded into the scheduler_php table however there is nothing for the scheduler_xml record, and I’m wondering if that’s my issue. I located the default.xml file and attempted to change settings in there, however the data in the table doesn’t get changed. I manually updated some settings in the scheduler_php entry but as soon as I load the calendar it changes back.