Wrong datatype warning appears

I've configured Drupal to connect and authenticate (anonymously) to my LDAP Server (openLDAP). When I log in everything is fine. When I go into My Account I get the following on my page:

warning: in_array() [function.in-array]: Wrong datatype for second argument in C:\Server\htdocs\drupal\sites\all\modules\ldap_integration\ldapdata.module on line 355.

warning: in_array() [function.in-array]: Wrong datatype for second argument in C:\Server\htdocs\drupal\sites\all\modules\ldap_integration\ldapdata.module on line 355.

warning: in_array() [function.in-array]: Wrong datatype for second argument in C:\Server\htdocs\drupal\sites\all\modules\ldap_integration\ldapdata.module on line 355.

warning: in_array() [function.in-array]: Wrong datatype for second argument in C:\Server\htdocs\drupal\sites\all\modules\ldap_integration\ldapdata.module on line 355.

Here's my configuration:

Authentication:
-> mode = MIXED
-> conflict resolve procedure = Associate local account with the LDAP entry
-> Do not store users' passwords during sessions
-> Remove password change fields from user edit form
-> Remove email field from form

Data:
-> Should Drupal account fields be mapped to LDAP Attributes?: Same, but read-only mode.
-> Fields -> mail = mail, pass = userpassword, signature = sn (didn't know what else to put)

I have not configured groups. (It's not relevant?)

Anyways, am I not configuring properly?? Does it have to do with the Drupal fields? Any help would be appreciated!

Thanks!