Error tras actualización

Buenas tardes, tras realizar la actualización de joomla ahora en la cabecera de mi web me sale:

"LESS ERROR : parse error: failed at `(~".grid@{index}") { .grid(@index); }` /home/norberto/public_html/canariasdeportiva.es/templates/tx_zenith/less/../../../libraries/expose/interface/less/mixins.less on line 553LESS ERROR : parse error: failed at `(~".grid@{index}") { .grid(@index); }` /home/norberto/public_html/canariasdeportiva.es/templates/tx_zenith/less/../../../libraries/expose/interface/less/mixins.less on line 553LESS ERROR : parse error: failed at `(~".grid@{index}") { .grid(@index); }` /home/norberto/public_html/canariasdeportiva.es/templates/tx_zenith/less/../../../libraries/expose/interface/less/mixins.less on line 553LESS ERROR : parse error: failed at `(~".grid@{index}") { .grid(@index); }` /home/norberto/public_html/canariasdeportiva.es/templates/tx_zenith/less/../../../libraries/expose/interface/less/mixins.less on line 553"

Y en el pie de página:

"LESS ERROR : parse error: failed at `(~".grid@{index}") { .grid(@index); }` /home/norberto/public_html/canariasdeportiva.es/templates/tx_zenith/less/styles/../../../../libraries/expose/interface/less/mixins.less on line 553LESS ERROR : parse error: failed at `(~".grid@{index}") { .grid(@index); }` /home/norberto/public_html/canariasdeportiva.es/templates/tx_zenith/less/styles/../../../../libraries/expose/interface/less/mixins.less on line 553LESS ERROR : parse error: failed at `(~".grid@{index}") { .grid(@index); }` /home/norberto/public_html/canariasdeportiva.es/templates/tx_zenith/less/styles/../../../../libraries/expose/interface/less/mixins.less on line 553LESS ERROR : parse error: failed at `(~".grid@{index}") { .grid(@index); }` /home/norberto/public_html/canariasdeportiva.es/templates/tx_zenith/less/styles/../../../../libraries/expose/interface/less/mixins.less on line 553"

Además he intentado crear un módulo y me da error.¿A qué es debido?

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