Resolved Helix Blog Option not uploading images

Gooday,

We did upload images correctly to an article using Helix Blog Options.
But suddenly we can not upload images (see attached image).

Develor Tools Console shows this error:
jquery-migrate.min.js:2 JQMIGRATE: Migrate is installed, version 1.4.1
VM3759:1 Uncaught SyntaxError: Unexpected token < in JSON at position 0(…)n.parseJSON @ jquery.min.js:4a.parseJSON @ jquery-migrate.min.js:2success @ spimage.js:49i @ jquery.min.js:2fireWith @ jquery.min.js:2y @ jquery.min.js:4c @ jquery.min.js:4

Our versions are:
joomla: 3.6.4
Helix 3 Ajax: 1.7
Shaper Helix 3: 1.1.
Helix 3 Framework: 1.7
We have updated today to SP Page Builder last version 2.1.:
SP Page Builder Site Module 1.0 Oct 2016 JoomShaper.com N/A 10162
SP Page Builder Administrator Module 1.0.2 August 2014 JoomShaper N/A 10005
SP Page Builder Administrator Component 2.1 Sep 2014 JoomShaper N/A 10004
SP Page Builder - Search Site Plugin 1.1 July 2015 joomshaper.com search 10036
SP Page Builder Admin Menu Administrator Module 1.0.2 August 2014 JoomShaper N/A 10006
System - SP Page Builder Pro Updater Site Plugin 1.0 Jul 2015 JoomShaper.com system 10037
System - SP PageBuilder Site Plugin 1.0 Sep 2016 JoomShaper.com system 10161

We have reviewed permissions and this forums threads.

Could you help us?.

Thanks.

Best regards.