Concrete5 An unexpected error occurred. Undefined class constant 'MYSQL_ATTR_MULTI_STATEMENTS'

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Hi, im am new here!
We have a non profit organization for children! We added multilanguage english and german and then it crashed!! The whole site with the erorr message "An unexpected error occurred.

Undefined class constant 'MYSQL_ATTR_MULTI_STATEMENTS'" What to do!? Heeeelp please!
Bjomag

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mlocati replied on at Permalink Reply
mlocati
Hi!

This is a known issue that will be fixed in the next concrete5 version.
In order to fix it now, you have to apply the change described here:https://github.com/concrete5/concrete5/pull/5843
bjomag replied on at Permalink Reply
Chande according to mlocati and got "The cache directory must be published under the webroot (or you can set the concrete.cache.directory_relative configuration option)"