Paypal, ecommerce or paypal framework?

Not sure where this belongs. Whote screen death:

Location http://domain.com/admin/paypal
Referrer http://domain.com/admin/settings/paypal_framework
Message Illegal mix of collations (latin1_swedish_ci,IMPLICIT) and (utf8_general_ci,IMPLICIT) for operation '=' query: SELECT u.uid, u.name as username, ppl.payer_email AS email_address, concat(ppp.first_name, " ", ppp.last_name) as realname, ppp.payer_id, ppl.mc_gross AS gross, ppl.item_name, ppl.item_number, ppl.txn_id, UNIX_TIMESTAMP(ppl.transaction_date) AS transaction_date, ppl.payment_status, ppl.mc_currency AS currency FROM paypal_log ppl LEFT JOIN users u ON ppl.payer_email=u.mail LEFT JOIN paypal_payer ppp ON ppl.payer_id=ppp.payer_id ORDER BY transaction_date DESC LIMIT 0, 15 in /home/httpd/vhosts/domain.com/httpdocs/includes/database.mysql.inc on line 120.