Fatal error : The file /home/vol10_2/epizy.com/epiz_23755195/htdocs/index.php was encoded by the ionCube Encoder for PHP 5.3 and cannot run under PHP 7.0. Please ask the provider of the script to provide a version encoded with the ionCube Encoder for PHP 5.6. in Unknown on line 0
The reason you see this error is because your software does not work with any PHP version more recent than PHP 5.3.
The only way to fix this is simple: don’t put yourself and your website at right and stop using this ancient software.
PHP 5.3 is very old and has not been updated in over 4 years. If your software does not work with newer PHP versions, it means the software has not been updated since long before that. That usually is a sign the software is unmaintained, and has not seen any (security) fixes for a long time.
Your best bet is to look for similar software which is still being maintained, and stop using whatever you are using right now.