Categories on DB but not on the Board ?

Question

hello

what can be the problem that made the categories not showing on the board front, but exist on the database table?

i export an install from localhost to a web server online and everything is working except the presentation of the categories on sidebar neither in Admin section.

recalc categories does not solve. where do i seek the root of this problem?

thanks!

Comments

Can be something related to php version or settings in the web server?

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hello
whats happen to other threads bellow?
i you help something there iam not seen them.

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what are the server configurations that presentation  of items depend to be show?
the q2a core make some limitation of the number of them  that can exist?
max_imput_vars alone can make them  not to show?
thanks