Fatal error

same problem since the activation of this plugin – so please have a second look if something changed maybe in the api (i’m using wp 3.9.1)

Hello,
I have exactly the same issue (Fatal error: Only variables can be passed by reference in /wp-content/plugins/simple-image-sizes/templates/admin-js.html on line 35) .
It seems that this piece of code is doing it:

<%   _.each( sis.crop_positions, function( label, name ) { %>
					<option value="<%  - name %>"> <%  - label %> </option>
				<%  }); %>

It might be a problem is with tags <% %>. If server has enabled ASP tags, script could crash because it’s evaluated as PHP.
Replacing them with <# #> using

_.templateSettings = {
                    evaluate:    /<#([\s\S]+?)#>/g,
                    interpolate: /\{\{\{([\s\S]+?)\}\}\}/g,
                    escape:      /\{\{([^\}]+?)\}\}(?!\})/g
                };

might help but I can’t figure it out where to place this code. Any help will be very appreciated. And thanks for your work.