menu are double when any error happen means if field have null

[saleemhaq]

I read the logs when any content fields of content type are null so the page is crashing on live server but on location it showing error like that:

[hishamco]

Please write down a reproduce steps using one of the built-in Orchard Core themes

[saleemhaq]

Please write down a reproduce steps using one of the built-in Orchard Core themes

My concern is that: on local I have any exception it showing on page like below

but on hosted server it showing double of menu instead of showing error if error any so i read out from logs.

[hishamco]

I'm not sure but may be something related to your theme, that's why I told you if you provide a steps to produce it will be good