RESPECT!
Also, here is a list of reddot error code from the RQL manual
Please Login
The user session has timed out or the Login GUID is no longer valid.
Please login again. Login.
#RDError1
The number of modules in the license key does not correspond to the
checksum.
#RDError2
The license key is only valid for the Beta test.
#RDError3
The license key is not correct. An error which could not be classified
has occurred during the check.
#RDError4
License is no longer valid.
#RDError5
The server IP address is different than specified in the license.
#RDError6
License is not yet valid.
#RDError7
License is a cluster license. This error message is no longer
supported beginning with CMS 6.0.
#RDError8
The IP address check in the license key is not correct.
#RDError9
Invalid version of the license key.
#RDError10
There are duplicate modules in the license.
#RDError11
A module in the license is flawed.
#RDError12
There are illegal characters in the license.
#RDError13
The checksum is not correct.
#RDError14
The serial number in the license is not correct.
#RDError15
The serial number of the license key is different from the serial
number of the previous license key.
#RDError16
The IP address of the Loopback adapter is not supported in this
license.
#RDError17
The license key contains no valid serial number.
#RDError101
The user is already logged on.
RDError110 (NoRight)
The user does not have the required privileges to execute the RQL. The
cause of this situation may be that the logon GUID or session key has
expired or the session has timed out.
RDError201
Access to database "ioAdministration" has failed.
#RDError301
Defective asynchronous component.
RDError401
A project is locked for the executing user or the user level.
RDError510
The application server is not available.
RDError511
The application server or the Management Server databases are updated.
RDError707
The Login GUID does not correspond to the logged on user.
RDError800
The maximum number of logins for a user has been reached.
#RDError2910
References still point to elements of this page.
#RDError2911
At least one element is still assigned as target container to a link.
#RDError3000
Package already exists.
RDError3032
You have tried to delete a content class on the basis of which pages
have already been created.
Error3049
Too many users to a license. Login to CMS failed. Please login again
later.
RDError4005
This user name already exists.
RDError5001
The folder path could not be found or the folder does no longer exist.
RDError6001
A file is already being used in the CMS.
RDError15805
You have no right to delete this page.
RDError16997
You cannot delete the content class. There are pages which were
created on the basis of this content class in other projects.