Problem emu mercury

Hello everyone,after having set up my FTP andhave given inject the base of my emulator and my cms , I pass vps I set out all and I run the emulator and I get an error but I will screen for you to show
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.http://prntscr.com/6sze0o

If you actually read the error, you would understand the problem. Your emulator is unable to connect to the specified MySQL host.