Can't open an attachment

[Wonomyro]

I can't open any attachment. Instead I get this message:

Invalid Attachment specified. If you followed a valid link, please notify the administrator

E. g. this one:

https://www.eupedia.com/forum/attachment.php?attachmentid=9476

 

[davef]

^^ I'm with you on that. I have no idea how to post images here.