Error in test data generator

Test data generator always opens with some 'test' database (I don't have such database anywhere else in the app) by default which causes the following error:

{

"message" : "not authorized on test to execute command { listCollections: true, filter: {}, cursor: {} }",

"stack" : "MongoError: not authorized on test to execute command { listCollections: true, filter: {}, cursor: {} }" +

"at queryCallback (...\\AppData\\Local\\Programs\\nosqlbooster4mongo\\resources\\app.asar\\node_modules\\mongodb-core\\lib\\cursor.js:223:25)" +

"at ...\\AppData\\Local\\Programs\\nosqlbooster4mongo\\resources\\app.asar\\node_modules\\mongodb-core\\lib\\connection\\pool.js:541:18" +

"at _combinedTickCallback (internal/process/next_tick.js:73:7)" +

"at process._tickCallback (internal/process/next_tick.js:104:9)",

"name" : "MongoError",

"ok" : 0,

"errmsg" : "not authorized on test to execute command { listCollections: true, filter: {}, cursor: {} }",

"code" : 13,

"codeName" : "Unauthorized"

}