Error with mysql

I have installed a discount coupon contribution for my oscommerce site - I have uploaded new files and also changed existing files as per the instructions with the contribution - I now have a database issue which gives this error:

Warning: mysql_connect(): Lost connection to MySQL server at 'reading initial communication packet', system error: 113 in /usr/local/pem/vhosts/121948/webspace/httpdocs/feelsafe/admin/includes/functions/[url removed, login to view] on line 19 Unable to connect to database server!

I have included a copy of the contribution for information - The website address is

Taidot: SQL

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Tietoa työnantajasta:
( 8 arvostelua ) Göteborg, Sweden

Projektin tunnus: #502371