<br />
<b>Fatal error</b>:  Cannot redeclare function register_block_pattern() (previously declared in /data/c/c/cc597be2-11e9-4721-a1da-d48d2b3c207d/pro-pet.cz/web/wp-includes/class-wp-block-patterns-registry.php:302) in <b>/data/c/c/cc597be2-11e9-4721-a1da-d48d2b3c207d/pro-pet.cz/web/wp-includes/block-patterns.php</b> on line <b>21</b><br />
<br />
<b>Fatal error</b>:  Uncaught Error: Call to a member function set() on null in /data/c/c/cc597be2-11e9-4721-a1da-d48d2b3c207d/pro-pet.cz/web/wp-includes/l10n.php:857
Stack trace:
#0 /data/c/c/cc597be2-11e9-4721-a1da-d48d2b3c207d/pro-pet.cz/web/wp-includes/l10n.php(960): load_textdomain('default', '/data/c/c/cc597...', 'cs_CZ')
#1 /data/c/c/cc597be2-11e9-4721-a1da-d48d2b3c207d/pro-pet.cz/web/wp-includes/class-wp-fatal-error-handler.php(49): load_default_textdomain()
#2 [internal function]: WP_Fatal_Error_Handler-&gt;handle()
#3 {main}
  thrown in <b>/data/c/c/cc597be2-11e9-4721-a1da-d48d2b3c207d/pro-pet.cz/web/wp-includes/l10n.php</b> on line <b>857</b><br />