Resolve web app BSOD
giving the following error due to no proper escaping.
"exception":{ +
"Exception":"Doctrine\\DBAL\\Exception\\InvalidFieldNameException", +
"Message":"" +
An exception occurred while executing a query: SQLSTATE[42703]: Undefined column: 7 ERROR: column "lang" does not exist +
LINE 1: ...configvalue FROM "oc_preferences" WHERE configkey="lang" and...
Signed-off-by: sergeng <sergeng@yahoo.fr>