Tried to publish a string but received an error

[hidari358]

Hi there, would like to ask why would I get this error when I try to publish a string? Here attached are the errors stated in command prompt:

SyntaxError: Unexpected token è in JSON at position 0 at JSON.parse () at exports.JsonTransform (C:\Users\user\test-nestjs\node_modules\nest-mqtt\dist\mqtt.transform.js:4:17) at C:\Users\user\test-nestjs\node_modules\nest-mqtt\dist\mqtt.explorer.js:108:36 at Array.map () at MqttClient. (C:\Users\user\test-nestjs\node_modules\nest-mqtt\dist\mqtt.explorer.js:105:82) at MqttClient.emit (events.js:311:20) at MqttClient._handlePublish (C:\Users\user\test-nestjs\node_modules\nest-mqtt\node_modules\mqtt\lib\client.js:1162:12) at MqttClient._handlePacket (C:\Users\user\test-nestjs\node_modules\nest-mqtt\node_modules\mqtt\lib\client.js:351:12) at work (C:\Users\user\test-nestjs\node_modules\nest-mqtt\node_modules\mqtt\lib\client.js:283:12) at Writable.writable._write (C:\Users\user\test-nestjs\node_modules\nest-mqtt\node_modules\mqtt\lib\client.js:294:5)

[longdratech]

pls add JSON.stringify into JSON.parse in mqtt.transform file