warning notice on content fees page

Just installed and clicking on Content Fees page gives the following warning. does it mean anything or is this normal..?:

    * warning: rsort() expects parameter 1 to be array, string given in /var/www/vhosts/domain.com/httpdocs/modules/paypalnode/paypalnode-admin.inc on line 186.
    * warning: Invalid argument supplied for foreach() in /var/www/vhosts/stillababy.com/httpdocs/modules/paypalnode/paypalnode-admin.inc on line 188.
    * user warning: Table 'domain.paypalnode_prices' doesn't exist query: SELECT * FROM paypalnode_prices WHERE price != 0 ORDER BY pid in /var/www/vhosts/domain.com/httpdocs/includes/database.mysql.inc on line 172.