Error when trying to encrypt a datetime

[bohwaz]

Warning: substr() expects parameter 1 to be string, object given
in vendor/michaeldegroot/doctrine-encrypt-bundle/Ambta/DoctrineEncryptBundle/Subscribers/DoctrineEncryptSubscriber.php (line 247)

On latest version 4.0

[cdcrft]

Hello, is there a workaround or a fix to address this issue ?

thank you

[mpweya]

I also would to know if there exist a workaround or fix, otherwise the bundle isn't usable

thanks