Error 500 (Read 259 times)

Probably more than 50% of my clicks on the site today have resulted in this message.

 

MTA: It happened again while trying to post the above.

Same here, during part of this afternoon (Western European Time). Chrome/Firefox and similar 'based-on' browsers - all up-to-date. Windows 8.1 is my installed OS.

A page refresh solved the problem 90% of times. Many consecutive 'Error 500' hiccups, nevertheless.