Error 500 en backoffice linea 86 bootstrap.php 1.7.1.4

[Javi lp]

Hola al navegar por el back office me sale un error 500 que no se solucionar, es el siguiente:

Fatal error: require_once(): Failed opening required '/mnt/web216/b0/04/53941504/htdocs/var/cache/dev/appParameters.php' (include_path='/mnt/web216/b0/04/53941504/htdocs/vendor/pear/pear_exception:/mnt/web216/b0/04/53941504/htdocs/vendor/pear/console_getopt:/mnt/web216/b0/04/53941504/htdocs/vendor/pear/pear-core-minimal/src:/mnt/web216/b0/04/53941504/htdocs/vendor/pear/archive_tar:.:/opt/RZphp70/includes') in /mnt/web216/b0/04/53941504/htdocs/config/bootstrap.php on line 86

 

A ver si alguien sabe como solucionarlo, gracias de antemano.

Versión prestashop 1.7.1.4

Edited January 14, 2019 by Javi lp
faltaba la versión prestashop (see edit history)