Circulation Statistics Error

I get an error when trying to run an Circulation Stats export

Warning: preg_replace() [function.preg-replace]: Compilation failed: missing terminating ] for character class at offset 4 in xxx/wp-content/plugins/weblibrarian/ExportLibraryStats.php on line 60

Warning: Cannot modify header information – headers already sent by (output started at xxx/wp-content/plugins/weblibrarian/ExportLibraryStats.php:60) in xxx/wp-content/plugins/weblibrarian/ExportLibraryStats.php on line 79

Warning: Cannot modify header information – headers already sent by (output started at xxx/wp-content/plugins/weblibrarian/ExportLibraryStats.php:60) in xxx/wp-content/plugins/weblibrarian/ExportLibraryStats.php on line 80

Warning: Cannot modify header information – headers already sent by (output started at xxx/wp-content/plugins/weblibrarian/ExportLibraryStats.php:60) in xxx/wp-content/plugins/weblibrarian/ExportLibraryStats.php on line 81

Warning: Cannot modify header information – headers already sent by (output started at xxx/wp-content/plugins/weblibrarian/ExportLibraryStats.php:60) in xxx/wp-content/plugins/weblibrarian/ExportLibraryStats.php on line 82
Type,Count “Childrens Movies”,0 “Docu/Instruction”,0 “Movies”,0 “TV Series”,0 “Total”,0

I noticed that I don’t get anything when I click on Circulations Stats, but I also noticed that there is a year populated in the dropdown but no month. Did I miss something?

http://wordpress.org/plugins/weblibrarian/