Can not upload files in 3Scale API Management console

Issue

• Can not upload customer logo image in 3Scale API Management console
• When we submit the form after selected the image the system crash.
• We can not upload files with the developer portal
• underlying error seen in TRACE:

Errno::EEXIST (File exists @ dir_s_mkdir - /opt/system/public//system):
  app/controllers/provider/admin/account/logos_controller.rb:13:in `update'
  lib/three_scale/middleware/multitenant.rb:116:in `_call'
  lib/three_scale/middleware/multitenant.rb:111:in `call'
  lib/action_dispatch/rails5_ssl.rb:86:in `call'
nn.nnn.nn.n - - [<date time>] "PATCH /500 HTTP/1.1" 500 - 0.2079