myDBR is compiled with the ionCube loader. When the myDBR starts, it checks the compiled code against a ionCube license file ioncube.txt. If the license key does not match the application, the error is show.
However, the error message in myDBR says 'Your license file "ioncube.txt"...', so it looks that in addition of not finding the correct license file, myDBR does not even find the error message file. Did the error page have a header stating "myDBR Installation - Installation error" with red background?
Easiest way to fix things is to redownload the myDBR installation file from myDBR.com and start from beginning. If you already have the database set up, myDBR will preserve the installation.
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myDBR Team