(SOLUCIONADO) Errores tras actualizacion a 1.5.6

[restartagain]

Hola...tra actualizar mi prestashop de 1.4.9 a la 1.5.6, al activar errores me sale ésto en el front:

 

Warning: Function addCSS() is deprecated in /var/www/vhosts/matrella.es/httpdocs/modules/blocksocialfooter/blocksocialfooter.php on line 93
in /var/www/vhosts/matrella.es/httpdocs/classes/Tools.php on line 2147

Warning: Function addJS() is deprecated in /var/www/vhosts/matrella.es/httpdocs/modules/randomfeatured/randomfeatured.php on line 80
in /var/www/vhosts/matrella.es/httpdocs/classes/Tools.php on line 2147

Warning: Function addJS() is deprecated in /var/www/vhosts/matrella.es/httpdocs/modules/randomfeatured/randomfeatured.php on line 81
in /var/www/vhosts/matrella.es/httpdocs/classes/Tools.php on line 2147

Warning: Function addCSS() is deprecated in /var/www/vhosts/matrella.es/httpdocs/modules/randomfeatured/randomfeatured.php on line 82
in /var/www/vhosts/matrella.es/httpdocs/classes/Tools.php on line 2147

 

Alguien me puede ayudar a solucionarlo?

Edited April 13, 2015 by restartagain (see edit history)

[restartagain]

Lo solucioné siguiendo estas indicaciones: https://www.prestashop.com/forums/topic/208918-errors-and-bugs-how-do-i-fix-these/?do=findComment&comment=1030233

 

No se si es un apaño o una solución oficial, pero por lo menos no da errores