TemplaVoila ERROR:

PHP Warning: igbinary_unserialize_header: unsupported version: "a:2:"..., should begin with a binary version header of "\x00\x00\x00\x01" or "\x00\x00\x00\x02" in /domains/yacht.cz/typo3_main/typo3_76/typo3/sysext/core/Classes/Cache/Frontend/VariableFrontend.php line 110