Update problem - network error

[tloudev (Ondrej Pachner)]

hi, my network connection works perfectly, but check for updates gives me an error:
A network error occurred: Error creating SSL context ()
in .xsession-errors I have:
libpng warning: iCCP: known incorrect sRGB profile
Cinnamon warning: Neplatné okno WM_TRANSIENT_FOR 0x8000007 specifikováno pro 0x8
000005 (LightBurn-).
qt.network.ssl: QSslSocket: cannot resolve CRYPTO_num_locks
qt.network.ssl: QSslSocket: cannot resolve CRYPTO_set_id_callback
qt.network.ssl: QSslSocket: cannot resolve CRYPTO_set_locking_callback
qt.network.ssl: QSslSocket: cannot resolve ERR_free_strings
qt.network.ssl: QSslSocket: cannot resolve EVP_CIPHER_CTX_cleanup
qt.network.ssl: QSslSocket: cannot resolve EVP_CIPHER_CTX_init
qt.network.ssl: QSslSocket: cannot resolve sk_new_null
qt.network.ssl: QSslSocket: cannot resolve sk_push
qt.network.ssl: QSslSocket: cannot resolve sk_free
qt.network.ssl: QSslSocket: cannot resolve sk_num
qt.network.ssl: QSslSocket: cannot resolve sk_pop_free
qt.network.ssl: QSslSocket: cannot resolve sk_value
qt.network.ssl: QSslSocket: cannot resolve SSL_library_init
qt.network.ssl: QSslSocket: cannot resolve SSL_load_error_strings
qt.network.ssl: QSslSocket: cannot resolve SSL_get_ex_new_index
qt.network.ssl: QSslSocket: cannot resolve SSLv3_client_method
qt.network.ssl: QSslSocket: cannot resolve SSLv23_client_method
qt.network.ssl: QSslSocket: cannot resolve SSLv3_server_method
qt.network.ssl: QSslSocket: cannot resolve SSLv23_server_method
qt.network.ssl: QSslSocket: cannot resolve X509_STORE_CTX_get_chain
qt.network.ssl: QSslSocket: cannot resolve OPENSSL_add_all_algorithms_noconf
qt.network.ssl: QSslSocket: cannot resolve OPENSSL_add_all_algorithms_conf
qt.network.ssl: QSslSocket: cannot resolve SSLeay
qt.network.ssl: Incompatible version of OpenSSL
qt.network.ssl: QSslSocket: cannot call unresolved function SSLv23_client_method
qt.network.ssl: QSslSocket: cannot call unresolved function SSL_CTX_new
qt.network.ssl: QSslSocket: cannot call unresolved function SSL_library_init
qt.network.ssl: QSslSocket: cannot call unresolved function ERR_get_error
qt.network.ssl: QSslSocket: cannot call unresolved function ERR_get_error
We got a connection error when networkLayerState is Unknown
downloaded 0 of 0
QCoreApplication::postEvent: Unexpected null receiver
QCoreApplication::postEvent: Unexpected null receiver
“illegal value”

I use linux mint 19, regullary updated. What’s wrong with OpenSSL?
tloudev@stodolar ~ $ dpkg -l |grep openssl
ii openssl 1.1.1-1ubuntu2.1~18.04.5 amd64 Secure Sockets Layer toolkit - cryptographic utility

[LightBurn (Oz)]

Welcome to Linux. Mint uses an old set of kernel libs for libssl that aren’t API compatible with the version LightBurn is linked against. Ubuntu 16.04 is what we build on, and we test a few others. Linux is about 1% of our user base, so we simply can’t devote the resources to do really wide distribution builds.