parse.com - MongoDb Gridstore Error -

i have been getting error months not being able save out of box mongodb gridstore. error message get. thoughts?

uncaught internal server error. [typeerror: cannot read property 'getfiledata' of undefined] typeerror: cannot read property 'getfiledata' of undefined     @ gethandler (/usr/local/lib/node_modules/parse-server/lib/routers/filesrouter.js:69:22)     @ layer.handle [as handle_request] (/usr/local/lib/node_modules/parse-server/node_modules/express/lib/router/layer.js:95:5)     @ next (/usr/local/lib/node_modules/parse-server/node_modules/express/lib/router/route.js:131:13)     @ route.dispatch (/usr/local/lib/node_modules/parse-server/node_modules/express/lib/router/route.js:112:3)     @ layer.handle [as handle_request] (/usr/local/lib/node_modules/parse-server/node_modules/express/lib/router/layer.js:95:5)     @ /usr/local/lib/node_modules/parse-server/node_modules/express/lib/router/index.js:277:22     @ param (/usr/local/lib/node_modules/parse-server/node_modules/express/lib/router/index.js:349:14)     @ param (/usr/local/lib/node_modules/parse-server/node_modules/express/lib/router/index.js:365:14)     @ param (/usr/local/lib/node_modules/parse-server/node_modules/express/lib/router/index.js:365:14)     @ function.process_params (/usr/local/lib/node_modules/parse-server/node_modules/express/lib/router/index.js:410:3)