Since you do not have an avatar image, please upload one. You can only have one avatar and uploading a new picture replaces the old one. It will take upto a few hours for your new avatar to appear everywhere.
The error still remains. I have downloaded from the link which came in the email.
Could you please confirm if you installed MixERP exactly described in the installation guide?
About 90% of the time, people face error because of not following the documentation. For example, creating a virtual directory for MixERP will not work.
Yes it was installed as per the installation guide. except the database i had to manually generate from scripts.
Sorry, I could not understand when you said "except the database I had to manually generate from scripts".
Edit: If you have pgAdmin4, we have some known issues with it. Download pgAdmin3 and install it along. No need to remove pgAdmin4. Use pgAdmin3 instead of pgAdmin4 and hopefully everything should work fine now.
Could you please also check that you choose one of the following when you initialize a database?