Cannot access my owncloud

Worked great for several months. I haven't updated or installed anything on my hosted server but now I get the "Internal server error" message when I visit my owncloud url. The version is 9.0.8. Here's the last line in the log.

{"reqId":"XdsFUH778ijiJHI78UJh","remoteAddr":"xx.xx.xx.xx","app":"core","message":"Exception: {\"Exception\":\"Doctrine\\\\DBAL\\\\Exception\\\\DriverException\",\"Message\":\"An exception occurred while executing 'SELECT * FROM \\\"oc_appconfig\\\"':\\n\\nSQLSTATE[HY000]: General error: 26 file is encrypted or is not a database\",\"Code\":0,\"Trace\":\"#0 \\\/home\\\/untoldcode\\\/public_html\\\/cloud\\\/3rdparty\\\/doctrine\\\/dbal\\\/lib\\\/Doctrine\\\/DBAL\\\/DBALException.php(116): Doctrine\\\\DBAL\\\\Driver\\\\AbstractSQLiteDriver->convertException('An exception oc...', Object(Doctrine\\\\DBAL\\\\Driver\\\\PDOException))\\n#1 \\\/home\\\/untoldcode\\\/public_html\\\/cloud\\\/3rdparty\\\/doctrine\\\/dbal\\\/lib\\\/Doctrine\\\/DBAL\\\/Connection.php(836): Doctrine\\\\DBAL\\\\DBALException::driverExceptionDuringQuery(Object(Doctrine\\\\DBAL\\\\Driver\\\\PDOSqlite\\\\Driver), Object(Doctrine\\\\DBAL\\\\Driver\\\\PDOException), 'SELECT * FROM \\\"...', Array)\\n#2 \\\/home\\\/untoldcode\\\/public_html\\\/cloud\\\/lib\\\/private\\\/db\\\/connection.php(184): Doctrine\\\\DBAL\\\\Connection->executeQuery('SELECT * FROM \\\"...', Array, Array, NULL)\\n#3 \\\/home\\\/untoldcode\\\/public_html\\\/cloud\\\/3rdparty\\\/doctrine\\\/dbal\\\/lib\\\/Doctrine\\\/DBAL\\\/Query\\\/QueryBuilder.php(206): OC\\\\DB\\\\Connection->executeQuery('SELECT * FROM \\\"...', Array, Array)\\n#4 \\\/home\\\/untoldcode\\\/public_html\\\/cloud\\\/lib\\\/private\\\/db\\\/querybuilder\\\/querybuilder.php(141): Doctrine\\\\DBAL\\\\Query\\\\QueryBuilder->execute()\\n#5 \\\/home\\\/untoldcode\\\/public_html\\\/cloud\\\/lib\\\/private\\\/appconfig.php(274): OC\\\\DB\\\\QueryBuilder\\\\QueryBuilder->execute()\\n#6 \\\/home\\\/untoldcode\\\/public_html\\\/cloud\\\/lib\\\/private\\\/appconfig.php(119): OC\\\\AppConfig->loadConfigValues()\\n#7 \\\/home\\\/untoldcode\\\/public_html\\\/cloud\\\/lib\\\/private\\\/util.php(432): OC\\\\AppConfig->getValue('core', 'OC_Channel')\\n#8 \\\/home\\\/untoldcode\\\/public_html\\\/cloud\\\/lib\\\/private\\\/util.php(365): OC_Util::loadVersion()\\n#9 \\\/home\\\/untoldcode\\\/public_html\\\/cloud\\\/lib\\\/public\\\/util.php(72): OC_Util::getVersion()\\n#10 \\\/home\\\/untoldcode\\\/public_html\\\/cloud\\\/lib\\\/private\\\/defaults.php(52): OCP\\\\Util::getVersion()\\n#11 \\\/home\\\/untoldcode\\\/public_html\\\/cloud\\\/lib\\\/private\\\/template.php(79): OC_Defaults->__construct()\\n#12 \\\/home\\\/untoldcode\\\/public_html\\\/cloud\\\/lib\\\/private\\\/template.php(339): OC_Template->__construct('', 'exception', 'error', false)\\n#13 \\\/home\\\/untoldcode\\\/public_html\\\/cloud\\\/index.php(63): OC_Template::printExceptionErrorPage(Object(Doctrine\\\\DBAL\\\\Exception\\\\DriverException))\\n#14 {main}\",\"File\":\"\\\/home\\\/untoldcode\\\/public_html\\\/cloud\\\/3rdparty\\\/doctrine\\\/dbal\\\/lib\\\/Doctrine\\\/DBAL\\\/Driver\\\/AbstractSQLiteDriver.php\",\"Line\":85}","level":3,"time":"2017-07-07T12:14:30+00:00","method":"GET","url":"\/cloud\/","user":"--"}

My webhost must have done something, so I'm moving on.

I can read: SQLSTATE[HY000]: General error: 26 file is encrypted or is not a database

try to run an occ files:scan if the files does not exist will be removed.