Fix “There is no suitable CSPRNG installed on your system” in Plesk

After updating paragonie/random_compat you may get this error. This is caused because version 2.0 stopped using OpenSSL and now it uses /dev/urandom which may not be readable by your PHP configuration. This is fixed adding /dev/urandom to your open_base configuration in “Websites & Domains -> PHP Settings -> open_basedir”:



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  1. By me, I have only set the version of my PHP from 5 to 7 and then it works well

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