using two different PCs I get the same problem today:

when syncing, the client suddenly crashes with the following debug.log:

.....
2015-06-29 14:30:34 IO error: C:\Users\Internet\AppData\Roaming\Bitcoin\chainstate\713704.ldb: Zugriff verweigert (access denied)

2015-06-29 14:30:34 *** System error while flushing: Database I/O error
2015-06-29 14:36:59 ERROR: ProcessNewBlock : ActivateBestChain failed
2015-06-29 14:37:00 net thread interrupt
2015-06-29 14:37:00 opencon thread interrupt
2015-06-29 14:37:00 dumpaddr thread stop
2015-06-29 14:37:00 addcon thread interrupt
2015-06-29 14:37:03 msghand thread interrupt
2015-06-29 14:37:03 Shutdown: In progress...
2015-06-29 14:37:03 StopNode()
2015-06-29 14:37:03 UPNP_DeletePortMapping() returned : 403
2015-06-29 14:37:03 upnp thread interrupt
2015-06-29 14:37:03 IO error: C:\Users\Internet\AppData\Roaming\Bitcoin\chainstate\713704.ldb: Zugriff verweigert (access denied)
2015-06-29 14:37:03 *** System error while flushing: Database I/O error

The message says client is stopping but the process never closes

I used the client since 2011 without any problems. Any idea ??

Forum member Coinpicker offered 1 MEC a week for changing the signature here:

https://bitcointalk.org/index.php?topic=381998.0

He did not pay since 2 weeks and does not answer PMs, but is still active. Is anyone here who got the MECs?

hello,

absolutely know nothing about bitcoins and altcoins.

Where can I buy altcoins using "standard" bank transfer, Paypal, uKash, Paysafe?