An Error Occured: DatabaseException!

Message: [db_error: message="DB Error: connect failed" code=-24 mode=return level=notice prefix="" info=" [nativecode=Connecting to 3.22, 3.23 & 4.0 servers is not supported] ** mysql://db163724:********@mysql.wwwfz-weiss.de/db163724"]
File: /kunden/163724_85774/webseiten/maguro-framework/framework/support/database/dbc.php
Line: 66
Backtrace (5 last steps):

STEP: 1
array(6) {
file => string(82) /kunden/163724_85774/webseiten/maguro-framework/framework/support/database/dbc.php
line => int 31
function => string(17) _createConnection
class => string(3) DBC
type => string(2) ::
args => array(1) {
0 => &string(7) default
}
}
STEP: 2
array(6) {
file => string(82) /kunden/163724_85774/webseiten/maguro-framework/framework/support/database/dbc.php
line => int 43
function => string(15) getDBConnection
class => string(3) DBC
type => string(2) ::
args => array(1) {
0 => &string(7) default
}
}
STEP: 3
array(6) {
file => string(61) /kunden/163724_85774/webseiten/maguro/init.d/00_framework.php
line => int 15
function => string(13) getConnection
class => string(3) DBC
type => string(2) ::
args => array(0)
}
STEP: 4
array(4) {
file => string(46) /kunden/163724_85774/webseiten/maguro/init.php
line => int 45
args => array(1) {
0 => string(61) /kunden/163724_85774/webseiten/maguro/init.d/00_framework.php
}
function => string(12) require_once
}
STEP: 5
array(4) {
file => string(40) /kunden/163724_85774/webseiten/index.php
line => int 26
args => array(1) {
0 => string(46) /kunden/163724_85774/webseiten/maguro/init.php
}
function => string(12) require_once
}


Server:
array(34) {
PATH => string(28) /usr/local/bin:/usr/bin:/bin
UNIQUE_ID => string(27) W@8Aj5g2oHg01jlXamWWuQAAAEQ
SCRIPT_URL => string(1) /
SCRIPT_URI => string(24) http://www.wwwfz-muc.de/
SWFFONTPATH => string(22) /usr/lib/libswf/fonts/
PDFLIBRESOURCE => string(27) /usr/local/fonts/pdflib.upr
HTTP_USER_AGENT => string(40) CCBot/2.0 (https://commoncrawl.org/faq/)
HTTP_ACCEPT => string(63) text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8
HTTP_HOST => string(16) www.wwwfz-muc.de
HTTP_CONNECTION => string(10) Keep-Alive
HTTP_ACCEPT_ENCODING => string(4) gzip
SERVER_SOFTWARE => string(13) Apache/2.4.35
SERVER_NAME => string(16) www.wwwfz-muc.de
SERVER_ADDR => string(13) 134.119.45.73
SERVER_PORT => string(2) 80
REMOTE_ADDR => string(13) 54.235.48.106
DOCUMENT_ROOT => string(27) /www/163724_85774/webseiten
SERVER_ADMIN => string(26) webmaster@www.wwwfz-muc.de
SCRIPT_FILENAME => string(37) /www/163724_85774/webseiten/index.php
REMOTE_PORT => string(5) 58858
GATEWAY_INTERFACE => string(7) CGI/1.1
SERVER_PROTOCOL => string(8) HTTP/1.1
REQUEST_METHOD => string(3) GET
QUERY_STRING => string(0)
REQUEST_URI => string(1) /
SCRIPT_NAME => string(10) /index.php
DOCROOT => string(27) /www/163724_85774/webseiten
DOC_ROOT => string(27) /www/163724_85774/webseiten
PHPRC => string(70) ./:/etc/php.ini/5/163724/609345:/etc/php.ini/5/163724:/usr/local/php55
PHP_SELF => string(10) /index.php
REQUEST_TIME_FLOAT => float 1542389903.3124
REQUEST_TIME => int 1542389903
argv => array(0)
argc => int 0
}


Request:
array(0)


Environment:
array(29) {
PATH => string(28) /usr/local/bin:/usr/bin:/bin
UNIQUE_ID => string(27) W@8Aj5g2oHg01jlXamWWuQAAAEQ
SCRIPT_URL => string(1) /
SCRIPT_URI => string(24) http://www.wwwfz-muc.de/
SWFFONTPATH => string(22) /usr/lib/libswf/fonts/
PDFLIBRESOURCE => string(27) /usr/local/fonts/pdflib.upr
HTTP_USER_AGENT => string(40) CCBot/2.0 (https://commoncrawl.org/faq/)
HTTP_ACCEPT => string(63) text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8
HTTP_HOST => string(16) www.wwwfz-muc.de
HTTP_CONNECTION => string(10) Keep-Alive
HTTP_ACCEPT_ENCODING => string(4) gzip
SERVER_SOFTWARE => string(13) Apache/2.4.35
SERVER_NAME => string(16) www.wwwfz-muc.de
SERVER_ADDR => string(13) 134.119.45.73
SERVER_PORT => string(2) 80
REMOTE_ADDR => string(13) 54.235.48.106
DOCUMENT_ROOT => string(27) /www/163724_85774/webseiten
SERVER_ADMIN => string(26) webmaster@www.wwwfz-muc.de
SCRIPT_FILENAME => string(37) /www/163724_85774/webseiten/index.php
REMOTE_PORT => string(5) 58858
GATEWAY_INTERFACE => string(7) CGI/1.1
SERVER_PROTOCOL => string(8) HTTP/1.1
REQUEST_METHOD => string(3) GET
QUERY_STRING => string(0)
REQUEST_URI => string(1) /
SCRIPT_NAME => string(10) /index.php
DOCROOT => string(27) /www/163724_85774/webseiten
DOC_ROOT => string(27) /www/163724_85774/webseiten
PHPRC => string(70) ./:/etc/php.ini/5/163724/609345:/etc/php.ini/5/163724:/usr/local/php55
}