www.gigogne.be : 500 Internal Server Error

Atelier_GIGOGNE / 2017-05-05 09:52:08   

On May 1, 2017, after saving the site gigogne.be by copying the files via FileZila to my computer, without changing anything on the site, it has become totally inaccessible, with this message:
500 Internal Server Error / The server encountered an internal error or misconfiguration and was unable to complete your request. Please contact the server administrator, [no address given] and inform them of the time the error occurred, and anything you might have done that may have caused the error. More information about this error may be available in the server error log. Apache Server at gigogne.be Port 80

In the "logs" directory of the site there is this error message:
[Mon May 01 12:39:24 2017] [error] [client 162.210.196.98] Premature end of script headers: index.php

In the file "current_acces_log", at the same time, there is this indication:
162.210.196.98 - - [01/May/2017:12:39:24 +0200] "GET /robots.txt HTTP/1.1" 500 602 "-" "Mozilla/5.0 (compatible; MJ12bot/v1.4.8; mj12bot.com/)"

Moreover, since March 22, 2017 there are plenty of error messages in the "logs" directory of the site, while I had nothing changed on the site :
[Fri Mar 17 22:30:15 2017] [error] [client 138.201.59.34] Request exceeded the limit of 10 internal redirects due to probable configuration error. Use 'LimitInternalRecursion' to increase the limit if necessary. Use 'LogLevel debug' to get a backtrace., referer: gigogne.be/

Can someone help me repair the access to this site?

Atelier_GIGOGNE / 2017-05-16 08:56:46   

Problème résolu, il fallait mettre à jour le mot de passe de la base MySQL dans le fichier config/config.php

This thread has been closed, thank you.