Getting Exception Error

[isAlmogK]

Exception from sub kAdminSubscribe id WKaMhp8KtgJRidTQF TypeError: Cannot read property 'children' of undefined

at new Publication (packages/reywood_publish-composite/packages/reywood_publish-composite.js:52:1) I20151012-00:07:13.939(3)? at [object Object]. (packages/reywood_publish-composite/packages/reywood_publish-composite.js:414:1) I20151012-00:07:13.939(3)? at packages/matb33_collection-hooks/collection-hooks.js:275:1 I20151012-00:07:13.940(3)? at [object Object]._.extend.withValue (packages/meteor/dynamics_nodejs.js:56:1) I20151012-00:07:13.940(3)? at [object Object].handler (packages/matb33_collection-hooks/collection-hooks.js:274:1) I20151012-00:07:13.940(3)? at packages/check/packages/check.js:117:1 I20151012-00:07:13.940(3)? at [object Object]..extend.withValue (packages/meteor/dynamics_nodejs.js:56:1) I20151012-00:07:13.940(3)? at Object.Match.failIfArgumentsAreNotAllChecked (packages/check/packages/check.js:116:1) I20151012-00:07:13.940(3)? at maybeAuditArgumentChecks (livedata_server.js:1689:18) I20151012-00:07:13.940(3)? at [object Object]..extend.runHandler (livedata_server.js:1023:17) I20151012-00:07:13.940(3)? at [object Object]..extend.startSubscription (livedata_server.js:842:9) I20151012-00:07:13.940(3)? at [object Object]..extend.protocol_handlers.sub (livedata_server.js:614:12) I20151012-00:07:13.940(3)? at livedata_server.js:548:43