Unable to decrypt string with openssl_decrypt() error

I’m using LAMP on Ubuntu20.04 (1-Click LAMP Droplet).

When I use a link like this:

I get the following error:

Unable to decrypt string with openssl_decrypt()

My server’s openssl version is OpenSSL 1.1.1f 31 Mar 2020.

What am I doing wrong here? Do I need to configure Openssl?

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