fix errormessage-handling & add 2 new translations #702

Job	Run time
Php-8.1-Mysql-8.0 / install_shop_with_module	1m 34s
Php-8.1-Mysql-8.0 / integration_tests	1m 12s
Php-8.1-Mysql-8.0 / unit_tests	1m 10s
Php-8.1-Mysql-8.0 / styles	1m 30s
Php-8.1-Mysql-8.0 / codeception_tests (FirstGroup)	5m 54s
Php-8.1-Mysql-8.0 / codeception_tests (ThirdGroup)	12m 41s
Php-8.1-Mysql-8.0 / codeception_tests (SecondGroup)	18m 28s
Php-8.1-Mysql-8.0 / codeception_tests (PaymentAvailableTest)	2m 14s
	44m 43s

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