omdf my server mucked plz help

[liam1757]

plz help m8s i coded comsthing from this guy and mucked up can u help heres result::

client.java:14230: cannot find symbol
symbol : variable toSlot
location: class client
if ((bankItemsN[toSlot] + amount) <= maxItemAmount
^
Note: stream.java uses or overrides a deprecated API.
Note: Recompile with -Xlint:deprecation for details.
1 error
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thx alot