I have an error running selenium and I do not know what I can do, someone to help me. Thank you

[FAILED] - Test Cases/monitoreo-kibana FAILED because (of) Unable to open browser with url: ‘’ (Root cause: org.openqa.selenium.WebDriverException: Failed to connect to binary FirefoxBinary(/usr/bin/firefox) on port 7055; process output follows:

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1528311749406 addons.manager DEBUG Provider finished startup: XPIProvider

1528311749406 addons.manager DEBUG Starting provider: LightweightThemeManager

1528311749406 addons.manager DEBUG Registering shutdown blocker for LightweightThemeManager

1528311749406 addons.manager DEBUG Provider finished startup: LightweightThemeManager

1528311749407 addons.manager DEBUG Starting provider: GMPProvider

1528311749409 addons.manager DEBUG Registering shutdown blocker for GMPProvider

1528311749409 addons.manager DEBUG Provider finished startup: GMPProvider

1528311749410 addons.manager DEBUG Starting provider: PluginProvider

1528311749410 addons.manager DEBUG Registering shutdown blocker for PluginProvider

1528311749410 addons.manager DEBUG Provider finished startup: PluginProvider

1528311749411 addons.manager DEBUG Completed startup sequence

1528311751004 addons.repository DEBUG No addons.json found.

1528311751025 addons.manager DEBUG Starting provider: PreviousExperimentProvider

1528311751025 addons.manager DEBUG Registering shutdown blocker for PreviousExperimentProvider

1528311751025 addons.manager DEBUG Provider finished startup: PreviousExperimentProvider

1528311751081 addons.xpi-utils DEBUG XPI Database saved, setting schema version preference to 24

1528311751449 addons.xpi INFO Mapping {5AB8F5AC-9644-11E6-89DF-D9D3C6AD2208} to /tmp/anonymous1528311747496webdriver-profile/extensions/{5AB8F5AC-9644-11E6-89DF-D9D3C6AD2208}.xpi

1528311751450 addons.xpi DEBUG Existing add-on {5AB8F5AC-9644-11E6-89DF-D9D3C6AD2208} in app-profile

1528311751451 addons.xpi INFO Mapping activity-stream@mozilla.org to /opt/firefox/browser/features/activity-stream@mozilla.org.xpi

1528311751451 addons.xpi INFO Mapping aushelper@mozilla.org to /opt/firefox/browser/features/aushelper@mozilla.org.xpi

1528311751451 addons.xpi INFO Mapping firefox@getpocket.com to /opt/firefox/browser/features/firefox@getpocket.com.xpi

1528311751451 addons.xpi INFO Mapping followonsearch@mozilla.com to /opt/firefox/browser/features/followonsearch@mozilla.com.xpi

1528311751452 addons.xpi INFO Mapping formautofill@mozilla.org to /opt/firefox/browser/features/formautofill@mozilla.org.xpi

1528311751452 addons.xpi INFO Mapping onboarding@mozilla.org to /opt/firefox/browser/features/onboarding@mozilla.org.xpi

1528311751452 addons.xpi INFO Mapping screenshots@mozilla.org to /opt/firefox/browser/features/screenshots@mozilla.org.xpi

1528311751452 addons.xpi INFO Mapping webcompat@mozilla.org to /opt/firefox/browser/features/webcompat@mozilla.org.xpi

1528311751453 addons.xpi DEBUG Existing add-on activity-stream@mozilla.org in app-system-defaults

1528311751453 addons.xpi DEBUG Existing add-on aushelper@mozilla.org in app-system-defaults

1528311751454 addons.xpi DEBUG Existing add-on firefox@getpocket.com in app-system-defaults

1528311751455 addons.xpi DEBUG Existing add-on followonsearch@mozilla.com in app-system-defaults

1528311751455 addons.xpi DEBUG Existing add-on formautofill@mozilla.org in app-system-defaults

1528311751456 addons.xpi DEBUG Existing add-on onboarding@mozilla.org in app-system-defaults

1528311751456 addons.xpi DEBUG Existing add-on screenshots@mozilla.org in app-system-defaults

1528311751457 addons.xpi DEBUG Existing add-on webcompat@mozilla.org in app-system-defaults

1528311751457 addons.xpi INFO Mapping {972ce4c6-7e08-4474-a285-3208198ce6fd} to /opt/firefox/browser/extensions/{972ce4c6-7e08-4474-a285-3208198ce6fd}.xpi

1528311751458 addons.xpi DEBUG Existing add-on {972ce4c6-7e08-4474-a285-3208198ce6fd} in app-global

1528311751459 addons.xpi DEBUG getInstallState changed: false, state: {}

1528311771487 addons.productaddons INFO sending request to: https://aus5.mozilla.org/update/3/GMP/60.0.1/20180516032328/Linux\_x86\_64-gcc3/en-US/release/Linux%204.4.0-124-generic%20(GTK%203.18.9%2Clibpulse%208.0.0)/default/default/update.xml

1528311774287 addons.productaddons INFO Completed downloading document

1528311776717 addons.productaddons INFO downloadXHR File download. status=200

1528311776720 addons.productaddons INFO Downloaded file will be saved to /tmp/tmpaddon-291bfa

Build info: version: ‘2.53.0’, revision: ‘35ae25b’, time: ‘2016-03-15 17:00:58’

System info: host: ‘logstash’, ip: ‘127.0.1.1’, os.name: ‘Linux’, os.arch: ‘amd64’, os.version: ‘4.4.0-124-generic’, java.version: ‘1.8.0_171’

Driver info: driver.version: CFirefoxDriver)

06-06-2018 02:03:13 PM - [END] - End Test Case : Test Cases/monitoreo-kibana

06-06-2018 02:03:14 PM - [END] - End Test Suite : activa_kibana

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Test Suites/activa_kibana - Firefox - 20180606_140220…1/1(100%)

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