404 error page not found

I have several events all working fine, but just one has this 404 error.
Yesterday I copied this event to a new one and moved the registered users to this.. and then this new one worked fine.
until this morning, I did not do anything and I got this 404 error back again.
this is the page :

www.boho.be/index.php/alle-workshops-gen.../patroontekenen.html

Any suggestions ??

Thx.

for the moment I solved it by changing the alias, making it shorter.
link now is : boho.be/index.php/alle-workshops-gent-bo...m-26-maart-2019.html

Hello Mike

I still unsure why it happens, but please use the workaround you are having now

If the issue happens again, please submit a support ticket so that we can check it further

Regards,

Tuan