Hi,
Check this:
Go to Administration->Components->Easy Profile
click on select field and go on tab 'Option Select Field'.

Set Multiple Selection paramenter on No

This message has been included in the latest version. you get this, when the field is created but there is no column in the database.

This can happen when you reach the maximum number of fields supported by Mysql ISAM (it's hard limit of database).

Before version 1.2.2 when you have inconsistency beetwen fields and DB the system not save nothing, now not save only incoerente field. The message is visible only from administration.

I've started a new problem in this post

no, it's ok.

Alert problem

how many fields? (including those in the trash)

number field

I do not know! there is the opportunity to see the problem?

Is teher any way of recostruct the fields automatically

No sorry

Hi,
I found the problem, this happens with Firefox (and maybe some version of IE).
Joomla load the html5 fallback javascript for old browser. In firefox this not work well and replace number field with select. (the problematic function is self.browser.isNumberNative, firefox return false instead true).

This is a Joomla issue, tomorrow I will send you the code to resolve the problem and we fix this in next release (force true on self.browser.isNumberNative for firefox).

You can try this with remove/rename the file /media/system/js/html5fallback.js (if you want test)