It is indeed widespread, covers all servers by the looks of it.
These kinds off issues are often rather illusive, they appear more or less randomly, and from what others written mostly when they do things in the admin interface of their scripts, such as making changes and submitting those. And it appears to be at all hours and not more often at a certain time of day, so going through logs isn't really a good option, it would have been easier if the issue only occurred at specific times.
On all that of the reports where I have checked their front end on the website, which is all I have access to obviously, I have not encountered any errors.
Is it limited to admin interface in your case too? I clicked around a bit on your site and didn't encounter any issues at this time.