I Googled the entire error string and it gave me a post from Krilleon, to wit:
Ok, found the cause. Quickfix is as follows.
IN: libraries/CBLib/CBLib/AhaWow/Model/XmlQuery.php
ON: Line 835
FROM:
if ( preg_match( '/[a-z]\./i', substr( $this->fieldsArray[$filterValuesArray], 0, 1 ) ) ) {
TO:
if ( preg_match( '/^[a-z]\./i', $this->fieldsArray[$filterValuesArray] ) ) {
Kyle (Krileon)
I manually edited the file and line indicated and HAVE RESOLVED MY PROBLEM!