Thanx for your reply.
Sadly its of no use for me and wont help me any further for i was not asking about the settings.

If you read carefully again you see that i provided a Errorcode from the editor which
1) shows that i set the Count to a max
2) I do not need to know where i can set the Plugin Manager things.
My IGES shows up and everything is done like that above concept.

I was asking for a solution for the mentioned modell above, which for itself does not seem to work and throws an error seen above.
The error points on some bad mesh, thats all i know at this stage, i need to get that export done

NO Clean up Mesh function shows anything and error remains after i ran through each one for itself, so after cleanup the same thing.

Tested:
a cube and the modell in the same export.
Cube works
Modell does not work

so it seems to be the modell i guess here...but i have no clue what to look for now