Error message

Warning: hash_equals(): Expected user_string to be a string, null given in CRM_Contact_BAO_Contact_Utils::validChecksum() (line 232 of /home/aspt/domains/civicrm.aspt.net/public_html/sites/all/modules/civicrm/CRM/Contact/BAO/Contact/Utils.php).

Membership Directory - CHRISTOPHER HAUFLER

First Name
CHRISTOPHER
Last Name
HAUFLER
Street Address (Main)
Haworth Hall
Supplemental Address 1 (Main)
University of Kansas
Supplemental Address 2 (Main)
Dept of Ecol & Evol Biology
City (Main)
State (Main)
KS
Postal Code (Main)
Country (Main)
Phone and Extension-Phone (Main)
785-864-3255
Phone and Extension-Fax (Main)
Research Interests
Biosystematics, speciation, population biology, polyploidy, pteridology, & evolutionary mechanisms of ferns (Pteridophyta), Polypodiaceae, Polypodium.