PDOStatement abstract method

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My site unexpectedly went down with this error. Any ideas?

Concrete5.7.5.9
PHP 7.1
Apache 2.4

An unexpected error occurred.

Class Doctrine\DBAL\Driver\PDOStatement contains 1 abstract method and must therefore be declared abstract or implement the remaining methods (Doctrine\DBAL\Statement::rowCount)

InformaticsInc
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InformaticsInc replied on at Permalink Reply
InformaticsInc
PHP Fatal error: Class Doctrine\DBAL\Driver\PDOConnection contains 1 abstract method and must therefore be declared abstract or implement the remaining methods (Doctrine\DBAL\Driver\Connection::errorCode) in \updates\concrete5.7.5.9\concrete\vendor\doctrine\dbal\lib\Doctrine\DBAL\Driver\PDOConnection.php on line 30


Got this error as well
Mnkras replied on at Permalink Reply
Mnkras
Upgrading to V8 should resolve it, or downgrading your PHP version.
InformaticsInc replied on at Permalink Reply
InformaticsInc
We had the same error occur using the latest version of v8. PHP just released a new version of PHP 7.1. Do you recommend upgrading PHP 7.1 or downgrading to PHP 7.0?