Meteoplug Overlay not working anymore

[Uti]

Good morning all,

some days ago the overly funktionality from Meteoplug stopped working for me. And I assume this applies to many others as well.

http://www.meteoplug.com/draw/5c5b52545 ... 1f1f2e.png

This URL creates the following error which seems to be Server and not client related

Error: Cannot execute command "/usr/bin/convert"
Error: convert-im6.q16: unable to write blob `/dev/stdout': File exists @ error/blob.c/ImageToFile/1892.

can anyone help?

thanks
Urs