Facebook Connect Plugin problem

I have the Facebook connect plugin on my site. I thought it was working as I could see in members had used it to join. It has now ben brought to my attention that you receive an error when using it.

I tested it and received the following error : 

Fatal Error: An unrecoverable error has occured and has been logged. Contact the site admin with the following information: Exception at time 1488554949.

This is the error that member get stuck on, strange thing is they still show up on the site as registered but they would not know that unless they tried the registration link again. The plugin works perfectly once members are registered. It is just the initial registration. 

And lastly, I check the error log in  Cpanel and no errors were logged?????

Beginning Developers

Beginning Developers

This space is for newcomers, who wish to build a new plugin or to customize an existing one to their liking