(first of all I would appreciate any type of edition in title or context since everything related to this is not conceptualized since I barely have a month of experience in these subjects)
Since last Thursday I have been trying to see my website that worked on a ubuntu 16.04 on a ubuntu 14.04 in which, being empty, I installed apache2, mysql5.6, php5 and php7 and finally phpmyadmin. After several errors in the installation steps I managed to solve the last one that was a problem of permissions when putting localhost and trying to access my page, when solving that. Now I simply see the word "Error" in the upper left part of the browser window and nothing else, if I give the chrome debugger I have the following error message:
Failed to load resource: the server responded to a status of 500 (Internal Server Error)
I have looked at error.log but in relation to this I do not skip information and I do not know where the shots go, I searched a lot on the internet but I can not find anything clear. I put an image with the information of what is currently used, whatever else you need, you tell me.
By the way, I also say that I was working with php7.1 in the previous machine and in this I do not know why, if I have several php versions installed, I get the lowest one. If you think it could be this error I would also appreciate knowing how to change it, I have found information that I have carried out but it is not changed.
Thanks in advance.