Need help with oscommerce error and install contribution

i want some one to fix this error

Fatal error: Cannot redeclare tep_db_connect() (previously declared in /home/domain/public_html/admin/includes/functions/[url removed, login to view]) in /home/adults/public_html/admin/includes/functions/[url removed, login to view] on line 13

and install this properly as i tried and then i get the error ONLY PHP or oscommerse experts thanks

Taidot: PHP, verkkosivujen suunnittelu

Näytä lisää: this error, help php, get help, fix help, php install, php fatal error, need help website design, help fix php, fix php fatal, fatal, error, error php, adults, fatal error php, tried, admin error, website error, design install, php oscommerce experts, error oscommerce php, fix error php, help line, want domain, oscommerce php error, domain help

Projektin tunnus: #4941