This has nothing to do with my theme.
If you're still having issues with your Mysidia installation/your config file issue then you need to start from the very beginning. Confirm you have a server running in the PHP 5.x line, not PHP 7.x (it will not work, no matter what, if you are using a PHP 7.x host - pick a different provider if you cannot downgrade what version of PHP they provide you). Then following the instructions as outlined in the thread you obtained the download from (aka
this one). For convenience's sake, I'm pasting the steps:
If Step 4
doesn't redirect you to the install page, I believe its just at the url you've uploaded the files to
/install.
No one here can help you until after you've confirm for us what hosting you're trying to install it on, that said hosting is providing you with something between PHP 5.3 and PHP 5.6, that you uploaded your files and set with the proper permissions via ftp, your config file was renamed, and you ran the installer at the /install url and it did not throw any errors.
If you're still having issues, the most important information you need to provide when writing a ticket is what hosting provider you're attempting to use. There are known problems and known solutions to a small handful of providers, but we can't offer any solutions until you tell us, step by step, what you were and were not able to do of the instructions.
I suspect that your hosting isn't running the proper version of PHP and/or you did not run the installer.