System Error when running Ganache 2.5.4 on darwin

[raisle]

Hey, I was running truffle tests and this error comes up :

2. Contract: Token "before all" hook: prepare suite: Error: Could not connect to your Ethereum client. Please check that your Ethereum client: - is running - is accepting RPC connections (i.e., "--rpc" option is used in geth) - is accessible over the network - is properly configured in your Truffle configuration file (truffle-config.js)

   at ProviderError.ExtendableError (/usr/local/lib/node_modules/truffle/build/webpack:/packages/truffle-error/index.js:10:1) at new ProviderError (/usr/local/lib/node_modules/truffle/build/webpack:/packages/truffle-provider/error.js:17:1) at /usr/local/lib/node_modules/truffle/build/webpack:/packages/truffle-provider/wrapper.js:75:1 at /usr/local/lib/node_modules/truffle/build/webpack:/packages/truffle-provider/wrapper.js:107:1 at XMLHttpRequest.request.onreadystatechange (/usr/local/lib/node_modules/truffle/build/webpack:/~/web3-providers-http/src/index.js:96:1) at XMLHttpRequestEventTarget.dispatchEvent (/usr/local/lib/node_modules/truffle/build/webpack:/~/xhr2-cookies/dist/xml-http-request-event-target.js:34:1) at XMLHttpRequest._setReadyState (/usr/local/lib/node_modules/truffle/build/webpack:/~/xhr2-cookies/dist/xml-http-request.js:208:1) at XMLHttpRequest._onHttpRequestError (/usr/local/lib/node_modules/truffle/build/webpack:/~/xhr2-cookies/dist/xml-http-request.js:349:1) at ClientRequest. (/usr/local/lib/node_modules/truffle/build/webpack:/~/xhr2-cookies/dist/xml-http-request.js:252:47) at Socket.socketOnEnd (_http_client.js:435:9) at endReadableNT (_stream_readable.js:1145:12) at process._tickCallback (internal/process/next_tick.js:63:19)

PLATFORM: darwin GANACHE VERSION: 2.5.4

EXCEPTION:

TypeError: Cannot read property 'transactions' of null
    at ProjectsWatcher.handleBlock (/private/var/folders/xd/f483ch1n2tx5wl8j51xbtlwc0000gn/T/AppTranslocation/8F69DD70-D75E-486E-99B9-9C9B31025344/d/Ganache.app/Contents/Resources/static/node/truffle-integration/projectsWatcher.js:180:38)
    at runMicrotasks (<anonymous>)
    at processTicksAndRejections (internal/process/task_queues.js:93:5)
    at Subscription.<anonymous> (/private/var/folders/xd/f483ch1n2tx5wl8j51xbtlwc0000gn/T/AppTranslocation/8F69DD70-D75E-486E-99B9-9C9B31025344/d/Ganache.app/Contents/Resources/static/node/truffle-integration/projectsWatcher.js:57:9)