Hi I am not able to start the Report server throwing error.Please suggest as it is affecting the cli

Apr 9, 2015 11:07PM

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WLS ManagedService is not up running. Fall back to use system properties for configuration.

Exception in thread "Thread-5" java.lang.OutOfMemoryError: Java heap space

at java.io.ObjectInputStream$BlockDataInputStream.<init>(ObjectInputStream.java:2329)

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15/03/31 17:27:23 Start process

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WLS ManagedService is not up running. Fall back to use system properties for configuration.

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15/03/31 17:32:23 Stop process

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15/04/01 00:18:24 Start process

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WLS ManagedService is not up running. Fall back to use system properties for configuration.

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15/04/01 00:20:18 Stop process

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15/04/01 00:21:09 Start process

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WLS ManagedService is not up running. Fall back to use system properties for configuration.

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15/04/01 00:25:48 Start process

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WLS ManagedService is not up running. Fall back to use system properties for configuration.

Oracle Reports (MOSC)