Can not install plugin "Comala Workflows for Scroll Versions"

Hi.

I'm trying to install plugin Comala Workflows for Scroll Versions v.3.11.4 and get an error: 
"An error occurred during installation. Refer to the logs for more information."

In atlassian-confluence.log:

2019-02-05 12:39:57,477 ERROR [UpmAsynchronousTaskManager:thread-2] [upm.core.install.ObrPluginInstallHandler] logUnsatisfiedRequirements OBR resolver has 5 unsatisfied requirements for installing plugin_290116048839085402_scroll-versions-comala-workflows-integration-3.11.4 (5).obr
 -- url: /rest/plugins/1.0/ | referer: localhost:8090/plugins/servlet/upm/manage/all | traceId: 40b672c8de42027e | userName: MURTAZINMS
2019-02-05 12:39:57,477 ERROR [UpmAsynchronousTaskManager:thread-2] [upm.core.install.ObrPluginInstallHandler] logUnsatisfiedRequirements Unsatisfied requirement: (&(package=com.comalatech.workflow.template))
 -- url: /rest/plugins/1.0/ | referer: localhost:8090/plugins/servlet/upm/manage/all | traceId: 40b672c8de42027e | userName: MURTAZINMS
2019-02-05 12:39:57,477 ERROR [UpmAsynchronousTaskManager:thread-2] [upm.core.install.ObrPluginInstallHandler] logUnsatisfiedRequirements Unsatisfied requirement: (&(package=com.comalatech.workflow.event.admin))
 -- url: /rest/plugins/1.0/ | referer: localhost:8090/plugins/servlet/upm/manage/all | traceId: 40b672c8de42027e | userName: MURTAZINMS
2019-02-05 12:39:57,477 ERROR [UpmAsynchronousTaskManager:thread-2] [upm.core.install.ObrPluginInstallHandler] logUnsatisfiedRequirements Unsatisfied requirement: (&(package=com.comalatech.workflow.event))
 -- url: /rest/plugins/1.0/ | referer: localhost:8090/plugins/servlet/upm/manage/all | traceId: 40b672c8de42027e | userName: MURTAZINMS
2019-02-05 12:39:57,477 ERROR [UpmAsynchronousTaskManager:thread-2] [upm.core.install.ObrPluginInstallHandler] logUnsatisfiedRequirements Unsatisfied requirement: (&(package=com.comalatech.workflow.model))
 -- url: /rest/plugins/1.0/ | referer: localhost:8090/plugins/servlet/upm/manage/all | traceId: 40b672c8de42027e | userName: MURTAZINMS
2019-02-05 12:39:57,477 ERROR [UpmAsynchronousTaskManager:thread-2] [upm.core.install.ObrPluginInstallHandler] logUnsatisfiedRequirements Unsatisfied requirement: (&(package=com.comalatech.workflow))
 -- url: /rest/plugins/1.0/ | referer: localhost:8090/plugins/servlet/upm/manage/all | traceId: 40b672c8de42027e | userName: MURTAZINMS
2019-02-05 12:39:59,514 WARN [UpmAsynchronousTaskManager:thread-2] [upm.core.install.DefaultPluginInstallationService] execute Plugin installation failed: Failed to resolve plugin dependencies within OBR [plugin_290116048839085402_scroll-versions-comala-workflows-integration-3.11.4 (5).obr]. Please see the logs for more detailed information.
 -- url: /rest/plugins/1.0/ | referer: localhost:8090/plugins/servlet/upm/manage/all | traceId: 40b672c8de42027e | userName: MURTAZINMS

Confluence v. 6.10 

Scroll Versions v.3.11.4