XF 2.0 XF\Db\Exception: MySQL query error [1406]: Data too long for column 'cache_results' at row 1 src/XF/Db/AbstractStatement.php:212

[dabollicks]

UPDATE  xf_member_stat SET `cache_expiry` = ?, `cache_results` = ? WHERE `member_stat_id` = 7
------------

#0 src/XF/Db/Mysqli/Statement.php(174): XF\Db\AbstractStatement->getException('MySQL query err...', 1406, '22001')
#1 src/XF/Db/Mysqli/Statement.php(69): XF\Db\Mysqli\Statement->getException('MySQL query err...', 1406, '22001')
#2 src/XF/Db/AbstractAdapter.php(69): XF\Db\Mysqli\Statement->execute()
#3 src/XF/Db/AbstractAdapter.php(229): XF\Db\AbstractAdapter->query('UPDATE  xf_memb...', Array)
#4 src/XF/Mvc/Entity/Entity.php(1386): XF\Db\AbstractAdapter->update('xf_member_stat', Array, '`member_stat_id...')
#5 src/XF/Mvc/Entity/Entity.php(1113): XF\Mvc\Entity\Entity->_saveToSource()
#6 src/XF/Service/MemberStat/Preparer.php(67): XF\Mvc\Entity\Entity->save()
#7 src/XF/Cron/MemberStats.php(19): XF\Service\MemberStat\Preparer->cache()
#8 [internal function]: XF\Cron\MemberStats::rebuildMemberStatsCache(Object(XF\Entity\CronEntry))
#9 src/XF/Job/Cron.php(35): call_user_func(Array, Object(XF\Entity\CronEntry))
#10 src/XF/Job/Manager.php(241): XF\Job\Cron->run(7.9999990463257)
#11 src/XF/Job/Manager.php(187): XF\Job\Manager->runJobInternal(Array, 7.9999990463257)
#12 src/XF/Job/Manager.php(76): XF\Job\Manager->runJobEntry(Array, 7.9999990463257)
#13 job.php(15): XF\Job\Manager->runQueue(false, 8)
#14 {main}

Any idea whats causing this, had 667 errors since last thursday

Many thanks