Redis error

/usr/lib/ruby/1.8/phusion_passenger/rack/thread_handler_extension.rb:81:in `process_request'
/usr/lib/ruby/1.8/phusion_passenger/request_handler/thread_handler.rb:145:in `accept_and_process_next_request'
/usr/lib/ruby/1.8/phusion_passenger/request_handler/thread_handler.rb:98:in `main_loop'
/usr/lib/ruby/1.8/phusion_passenger/request_handler.rb:440:in `block (3 levels) in start_threads'
/usr/lib/ruby/1.8/phusion_passenger/utils.rb:97:in `block in create_thread_and_abort_on_exception'


2016-02-22 16:23:59 -0500 (29285) GenericFilesController::create rescued Redis::CommandError
        ERR unknown command 'script'
 /opt/heracles/deploy/scholarsphere/shared/bundle/ruby/2.3.0/gems/redis-3.2.2/lib/redis/client.rb:114:in `call'
/opt/heracles/deploy/scholarsphere/shared/bundle/ruby/2.3.0/gems/newrelic_rpm-3.14.1.311/lib/new_relic/agent/instrumentation/redis.rb:42:in `block in call'
/opt/heracles/deploy/scholarsphere/shared/bundle/ruby/2.3.0/gems/newrelic_rpm-3.14.1.311/lib/new_relic/agent/datastores.rb:111:in `block in wrap'
/opt/heracles/deploy/scholarsphere/shared/bundle/ruby/2.3.0/gems/newrelic_rpm-3.14.1.311/lib/new_relic/agent/method_tracer.rb:73:in `block in trace_execution_scoped'
/opt/heracles/deploy/scholarsphere/shared/bundle/ruby/2.3.0/gems/newrelic_rpm-3.14.1.311/lib/new_relic/agent/method_tracer_helpers.rb:82:in `trace_execution_scoped'
/opt/heracles/deploy/scholarsphere/shared/bundle/ruby/2.3.0/gems/newrelic_rpm-3.14.1.311/lib/new_relic/agent/method_tracer.rb:71:in `trace_execution_scoped'
/opt/heracles/deploy/scholarsphere/shared/bundle/ruby/2.3.0/gems/newrelic_rpm-3.14.1.311/lib/new_relic/agent/datastores.rb:108:in `wrap'
/opt/heracles/deploy/scholarsphere/shared/bundle/ruby/2.3.0/gems/newrelic_rpm-3.14.1.311/lib/new_relic/agent/instrumentation/redis.rb:41:in `call'
/opt/heracles/deploy/scholarsphere/shared/bundle/ruby/2.3.0/gems/redis-3.2.2/lib/redis.rb:2326:in `block in script'
/opt/heracles/deploy/scholarsphere/shared/bundle/ruby/2.3.0/gems/redis-3.2.2/lib/redis.rb:57:in `block in synchronize'
/opt/heracles/deploy/.rbenv/versions/2.3.0/lib/ruby/2.3.0/monitor.rb:214:in `mon_synchronize'
/opt/heracles/deploy/scholarsphere/shared/bundle/ruby/2.3.0/gems/redis-3.2.2/lib/redis.rb:57:in `synchronize'
/opt/heracles/deploy/scholarsphere/shared/bundle/ruby/2.3.0/gems/redis-3.2.2/lib/redis.rb:2325:in `script'
/opt/heracles/deploy/scholarsphere/shared/bundle/ruby/2.3.0/gems/redlock-0.1.5/lib/redlock/client.rb:121:in `load_scripts'
/opt/heracles/deploy/scholarsphere/shared/bundle/ruby/2.3.0/gems/redlock-0.1.5/lib/redlock/client.rb:101:in `initialize'
/opt/heracles/deploy/scholarsphere/shared/bundle/ruby/2.3.0/gems/redlock-0.1.5/lib/redlock/client.rb:23:in `new'
/opt/heracles/deploy/scholarsphere/shared/bundle/ruby/2.3.0/gems/redlock-0.1.5/lib/redlock/client.rb:23:in `block in initialize'
/opt/heracles/deploy/scholarsphere/shared/bundle/ruby/2.3.0/gems/redlock-0.1.5/lib/redlock/client.rb:21:in `map'
/opt/heracles/deploy/scholarsphere/shared/bundle/ruby/2.3.0/gems/redlock-0.1.5/lib/redlock/client.rb:21:in `initialize'
/opt/heracles/deploy/scholarsphere/shared/bundle/ruby/2.3.0/gems/sufia-models-6.6.0/app/services/sufia/lock_manager.rb:16:in `new'
/opt/heracles/deploy/scholarsphere/shared/bundle/ruby/2.3.0/gems/sufia-models-6.6.0/app/services/sufia/lock_manager.rb:16:in `initialize'