ORA-04031: unable to allocate X bytes of shared memory
Try doubling shared pool size to 1G, or 1000M.

Java pool should be larger if you're using EJB.

Large pool should be much larger if you're using RMAN.

Remove sessions.

Reduce processes by a LOT, like start with 200.  Are you ever going to use close to 10,000???  XE is not meant for that many processes.

Make job_queue about 20.