Warning: file_put_contents(): Only 0 of 48 bytes written, possibly out of free disk space in /home/optar/public_html/catalog/controller/extension/lightning/gamma.php on line 4

Fatal error: Uncaught Exception: Error: Disk full (/tmp/#sql-temptable-392-71fa-bec2.MAI); waiting for someone to free some space... (errno: 28 "No space left on device")<br />Error No: 1021<br />SELECT * FROM oc_category c LEFT JOIN oc_category_description cd ON (c.category_id = cd.category_id) LEFT JOIN oc_category_to_store c2s ON (c.category_id = c2s.category_id) WHERE c.parent_id = '0' AND cd.language_id = '1' AND c2s.store_id = '0'  AND c.status = '1' ORDER BY c.sort_order, LCASE(cd.name) in /home/optar/public_html/system/library/db/mysqli.php:41
Stack trace:
#0 /home/optar/storage/modification/system/library/db.php(56): DB\MySQLi->query('SELECT * FROM o...')
#1 /home/optar/storage/modification/catalog/model/catalog/category.php(142): DB->query('SELECT * FROM o...')
#2 /home/optar/storage/modification/system/engine/loader.php(259): ModelCatalogCategory->getCategories(0)
#3 /home/optar/public_html/system/engine/proxy.php(47): Loader->{closure}(Array, Array)
#4 /home/optar/storage/modification/catalog/controller/extens in /home/optar/public_html/system/library/db/mysqli.php on line 41