Try to fix

app/deploy/django.py

@@ -23,4 +23,4 @@ class DjangoDeployment(Debian):
     def python_packages_install(self):
         """ Run Django management command in virtualenv. """
         # Activate the virtualenv.
-        self._virtualenv('pip install --upgrade pip && pip install -r %(PROJECT_DIR)s/requirements.txt --upgrade' % settings.__dict__)
+        self._virtualenv('pip install --upgrade pip && pip install -r %(PROJECT_DIR)s/app/requirements.txt --upgrade' % settings.__dict__)

app/requirements.txt

@@ -25,7 +25,7 @@ django-mptt==0.7.4
 django-multipleformwizard==0.2.16
 django-parler==1.5.1
 django-phonenumber-field==0.7.2
-django-pipeline==1.5.4
+django-pipeline==1.5.1
 django-polymorphic==0.7.2
 django-reversion==1.9.3
 django-sekizai==0.8.2

app/settings.py

@@ -88,8 +88,9 @@ STATICFILES_DIRS = (
 
 STATICFILES_STORAGE = 'pipeline.storage.PipelineCachedStorage'
 STATICFILES_FINDERS = (
-    'django.contrib.staticfiles.finders.FileSystemFinder',
-    'django.contrib.staticfiles.finders.AppDirectoriesFinder',
+    'pipeline.finders.FileSystemFinder',
+    'pipeline.finders.AppDirectoriesFinder',
+    'pipeline.finders.CachedFileFinder',
     'pipeline.finders.PipelineFinder',
 )
 
@@ -129,6 +130,7 @@ PIPELINE_CSS = {
         'output_filename': 'css/main.css',
     }
 }
+
 SITE_ID = 1
 
 TEMPLATE_LOADERS = (
@@ -267,7 +269,7 @@ INSTALLED_APPS = (
     # 'debug_toolbar',
     'djangocms_forms',
     'smartsnippets',
-    'easy_select2',
+    # 'easy_select2',
 
     'promo',
     'trademark',