I have had the ISP install the Crypt/Blowfish module and 'think' I've installed PEAR correctly as per the installation instructions. However, my site now gives this error at the top of the main index page:

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PROTX DIRECT: Your PHP installation does NOT have access to PEAR:Crypt_Blowfish on your server!

It would appear that the PEAR:Crypt_Blowfish package is not on your include path or is being blocked by open_basedir restrictions. Please check that Crypt_Blowfish is installed in your PEAR library and that the path to the PEAR:Crypt_Blowfish package is also in your PHP installation's open_basedir configuration setting.

Alternatively, your server may have more than one PEAR installation and the PEAR:Crypt_Blowfish package may not have been installed in the “correct” PEAR library folder - please check that you are using the correct PEAR library if you have more than one on your server.

Current Include Path: .:/usr/share/pear:/usr/share/php

Safe mode in use?: no

open_basedir restricted directories: /var/www/vhosts/domain.com/httpdocs:/tmp
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Please help!