Firstly thanks for helping with the network!

You can take a screenshot of the coin control (click inputs button on send tab) and pm me.
Don't need it right now though. Once you've done that, you can send to a new address and will be displayed on the block explorer again.
Also just to add for anyone, who has been staking frequently and has lots of smaller blocks (enable coin control to check this). If you then try to send coin out from an address, might be over the 'Bytes' limit of 10k per transaction and receive an error that the transaction cannot be sent. Then coin control must be used, selecting blocks individually and send in a few transactions to keep under that 10k limit.
Note: it will reset the coin age sending out to a new address.
If anyone is unsure about this, let me know and I'll create a screenshot.
I have a problem regarding my address and explorer.
When I enter my address on explorer.cryptoblox.com I receive: "I'm sorry, this address has too many records to display."
I left my wallet opened few weeks ago to help improve network, and now I have problem.
Now, how can dev know I'm holding my coins in my wallet?
Glad to hear that. Thank you dev and keep up with great work!