I had to use google translate on this. Not sure what you mean. The menu is the one that is in the Simplicity theme. I just changed colors, and added the FontAwesome icons.
"You should increase the menu 60+"

From doing a quick web search the limits may becoming from the php in the platform. I didn't see anything specifically related to Oxwall, but other similar platforms apparently set limits in the php that will drop anything outside the limits in an effort to mitigate potential ddos attacks. If that is the case, there would be nothing that I could do since any limits may be coming from the platform itself.

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it would be 40+.