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

Evner: PHP, Web Design

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Om arbejdsgiveren:
( 1 bedømmelse ) nsw, Australia

Projekt ID: #4941