How to resolve the error?

Hi, I’m trying to create a pushbutton for Revit via PyRevit. When I reload it shows the follow error:
Can someone help me with the fix?

Can not parse plugin ext definition file: C:\Users\arqmi\AppData\Roaming\pyRevit-Master\extensions\extensions.json | Extra data: line 167 column 1 - line 181 column 3 (char 6512 - 6827)
Can not parse plugin ext definition file: C:\Users\arqmi\AppData\Roaming\pyRevit-Master\extensions\extensions.json | Extra data: line 167 column 1 - line 181 column 3 (char 6512 - 6827)
Can not parse plugin ext definition file: C:\Users\arqmi\AppData\Roaming\pyRevit-Master\extensions\extensions.json | Extra data: line 167 column 1 - line 181 column 3 (char 6512 - 6827)
Can not parse plugin ext definition file: C:\Users\arqmi\AppData\Roaming\pyRevit-Master\extensions\extensions.json | Extra data: line 167 column 1 - line 181 column 3 (char 6512 - 6827)
Can not parse plugin ext definition file: C:\Users\arqmi\AppData\Roaming\pyRevit-Master\extensions\extensions.json | Extra data: line 167 column 1 - line 181 column 3 (char 6512 - 6827)
Can not parse plugin ext definition file: C:\Users\arqmi\AppData\Roaming\pyRevit-Master\extensions\extensions.json | Extra data: line 167 column 1 - line 181 column 3 (char 6512 - 6827)
Can not parse plugin ext definition file: C:\Users\arqmi\AppData\Roaming\pyRevit-Master\extensions\extensions.json | Extra data: line 167 column 1 - line 181 column 3 (char 6512 - 6827)
Can not parse plugin ext definition file: C:\Users\arqmi\AppData\Roaming\pyRevit-Master\extensions\extensions.json | Extra data: line 167 column 1 - line 181 column 3 (char 6512 - 6827)
Can not parse plugin ext definition file: C:\Users\arqmi\AppData\Roaming\pyRevit-Master\extensions\extensions.json | Extra data: line 167 column 1 - line 181 column 3 (char 6512 - 6827)

It states your \extensions.json file is not following the proper json syntax and cannot be parsed.

Use a code editor, it is probably a missing character.

Or send it here