MySQL error daily

MySQL seems to crash daily and doesn’t respond. I’ve made a post here: https://rtcamp.com/support/topic/mysql-error-every-morning-at-3am/ and no one has responded… Today marks day 3 in a row of it occurring. I’m running a DO 512mb 14.04 ubuntu freshh install of ee.

140516  2:11:54 [Warning] Using unique option prefix myisam-recover instead of myisam-recover-options is deprecated and will be removed in a future release. Please use the full name instead.  
140516  2:11:54 [Note] Plugin 'FEDERATED' is disabled.  
140516  2:11:54 InnoDB: The InnoDB memory heap is disabled  
140516  2:11:54 InnoDB: Mutexes and rw_locks use GCC atomic builtins  
140516  2:11:54 InnoDB: Compressed tables use zlib 1.2.8  
140516  2:11:54 InnoDB: Using Linux native AIO  
140516  2:11:54 InnoDB: Initializing buffer pool, size = 128.0M  
InnoDB: mmap(137363456 bytes) failed; errno 12  
140516  2:11:54 InnoDB: Completed initialization of buffer pool  
140516  2:11:54 InnoDB: Fatal error: cannot allocate memory for the buffer pool  
140516  2:11:54 [ERROR] Plugin 'InnoDB' init function returned error.  
140516  2:11:54 [ERROR] Plugin 'InnoDB' registration as a STORAGE ENGINE failed.  
140516  2:11:54 [ERROR] Unknown/unsupported storage engine: InnoDB  
140516  2:11:54 [ERROR] Aborting  

140516  2:11:54 [Note] /usr/sbin/mysqld: Shutdown complete  

140516  2:11:55 [Warning] Using unique option prefix myisam-recover instead of myisam-recover-options is deprecated and will be removed in a future release. Please use the full name instead.  
140516  2:11:55 [Note] Plugin 'FEDERATED' is disabled.  
140516  2:11:55 InnoDB: The InnoDB memory heap is disabled  
140516  2:11:55 InnoDB: Mutexes and rw_locks use GCC atomic builtins  
140516  2:11:55 InnoDB: Compressed tables use zlib 1.2.8  
140516  2:11:55 InnoDB: Using Linux native AIO  
140516  2:11:55 InnoDB: Initializing buffer pool, size = 128.0M  
InnoDB: mmap(137363456 bytes) failed; errno 12  
140516  2:11:55 InnoDB: Completed initialization of buffer pool  
140516  2:11:55 InnoDB: Fatal error: cannot allocate memory for the buffer pool  
140516  2:11:55 [ERROR] Plugin 'InnoDB' init function returned error.  
140516  2:11:55 [ERROR] Plugin 'InnoDB' registration as a STORAGE ENGINE failed.  
140516  2:11:55 [ERROR] Unknown/unsupported storage engine: InnoDB  
140516  2:11:55 [ERROR] Aborting  

140516  2:11:55 [Note] /usr/sbin/mysqld: Shutdown complete

is pulled from mysql log … Hopefully someone will reply here.

Duplicate: https://rtcamp.com/support/topic/mysql-shutting-down/