After importing terms to a glossary the course page shows a database error and it is impossible to see the course page.

To replicate the error:
1 - Create a Glossary on a course
2 - Import terms from the following glossary: http://moodle.org/pluginfile.php/855/mod_glossary/attachment/6031/texfilter_glossary_en.xml
3 - Save an go to the course page
Result: The course page is incorrectly shown and a error message is shown at the end: Error reading from database

Could not finda a valid workaround. To get the course page again to display I had to hide the glossary module, or uninstall the module (deleting all glossaries in all courses) and install it again.