phpLDAPadmin

I have succesfully installed phpLDAPadmin on my Raspberry PI.
LDAD Server was already installed and populated via JXplorer Open Source Software.
The only minor problem I have is when I start phpLADPadmin and I open a persons name I get a lot of warnings (only the first time).
I did change the line in config.php that set the ‘hide_templete_warning’ to false.
As I said it is no big deal but I like to know why I get these warnings.
Thanks in advance for all answers,
gabriël