Attempted fix for breaking /slaves/

sharedPlugins/serverManager/static/index.html

@@ -27,7 +27,7 @@
 						html += `<li><div class="pluginStatus" style="background-color: ${plugin.enabled ? 'green' : 'red'}"></div><div style="width: calc( 100% - 50px )"><h3>${plugin.name}</h3><p>${plugin.description}</p></div></li>`
 					});
 					html += `</ul></div><div id="config">`
-					if(permissions && permissions.cluster.includes("readConfig")){
+					if(permissions && permissions.cluster && permissions.cluster.includes("readConfig")){
 						if(server.config){
 							html += `<ul>`;
 							server.config.forEach(setting => {