Apache2 error.log

[Janusz]

Hi.
In the /var/log/apache2/error.log

I have following warning:

Code: Select all

[Thu Aug 15 ....] [php7:warn] [pid 909] [client .....] PHP Warning:  Use of undefined constant nuFORMdata - assumed 'nuFORMdata' (this will throw an Error in a future version of PHP) in /var/www/...../..../nucommon.php(1254) : eval()'d code on line 9, referer: https://...../...../index.php?i=2&opener=15658659919801004

(it does not affect functionality)
Do you have similar warning?
or maybe how to correct the code to remove such warning?