Error while installing app or when reporting error

I tried to install app in ERPNext which i am trying on my local machine with VM.
Following error is appearing whenevr i tried to install an app or try to send error report…

I am a new user. Kindly guide me clearly.

Traceback (innermost last):
File “/home/frappe/frappe-bench/apps/frappe/frappe/”, line 57, in application
response = frappe.handler.handle()
File “/home/frappe/frappe-bench/apps/frappe/frappe/”, line 19, in handle
File “/home/frappe/frappe-bench/apps/frappe/frappe/”, line 36, in execute_cmd
ret =, **frappe.form_dict)
File “/home/frappe/frappe-bench/apps/frappe/frappe/”, line 806, in call
return fn(*args, **newargs)
File “/home/frappe/frappe-bench/apps/frappe/frappe/desk/page/applications/”, line 79, in install_app
File “/home/frappe/frappe-bench/apps/frappe/frappe/”, line 124, in install_app
sync_for(name, force=True, sync_everything=True, verbose=verbose)
File “/home/frappe/frappe-bench/apps/frappe/frappe/model/”, line 49, in sync_for
update_progress_bar(“Updating {0}”.format(app_name), i, l)
File “/home/frappe/frappe-bench/apps/frappe/frappe/utils/”, line 331, in update_progress_bar
IOError: [Errno 32] Broken pipe

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