Jack error log

17:21:36.515 Statistics reset.
17:21:36.545 ALSA connection change.
17:21:36.550 D-BUS: Service is available (org.jackaudio.service aka jackdbus).
Cannot connect to server socket err = No such file or directory
Cannot connect to server request channel
jack server is not running or cannot be started
JackShmReadWritePtr::~JackShmReadWritePtr - Init not done for -1, skipping unlock
JackShmReadWritePtr::~JackShmReadWritePtr - Init not done for -1, skipping unlock
17:21:36.579 ALSA connection graph change.
17:21:43.156 D-BUS: JACK server could not be started. Sorry
Cannot connect to server socket err = No such file or directory
Cannot connect to server request channel
jack server is not running or cannot be started
JackShmReadWritePtr::~JackShmReadWritePtr - Init not done for -1, skipping unlock
JackShmReadWritePtr::~JackShmReadWritePtr - Init not done for -1, skipping unlock
Sun Jan  2 17:21:42 2022: Starting jack server...
Sun Jan  2 17:21:42 2022: Jack: Server `default' registered
Sun Jan  2 17:21:42 2022: Jack: JackConnectionManager::InitConnections size = 19050752
Sun Jan  2 17:21:42 2022: Jack: JackConnectionManager::InitClients
Sun Jan  2 17:21:42 2022: JACK server starting in realtime mode with priority 10
Sun Jan  2 17:21:42 2022: self-connect-mode is "Don't restrict self connect requests"
Sun Jan  2 17:21:42 2022: Jack: JackShmMem::new index = 0 attached = 5f5f2000 size = 107341340
Sun Jan  2 17:21:42 2022: Jack: JackShmMem::new placement size = 38108700
Sun Jan  2 17:21:42 2022: Jack: Succeeded in locking 107341340 byte memory area
Sun Jan  2 17:21:42 2022: Jack: JackConnectionManager::InitConnections size = 19050752
Sun Jan  2 17:21:42 2022: Jack: JackConnectionManager::InitClients
Sun Jan  2 17:21:42 2022: Jack: JackConnectionManager::InitConnections size = 19050752
Sun Jan  2 17:21:42 2022: Jack: JackConnectionManager::InitClients
Sun Jan  2 17:21:42 2022: Jack: JackShmMem::new index = 1 attached = 66d9d000 size = 1196
Sun Jan  2 17:21:42 2022: Jack: Succeeded in locking 1196 byte memory area
Sun Jan  2 17:21:42 2022: Jack: JackPosixThread::StartImp : create non RT thread
Sun Jan  2 17:21:42 2022: Jack: JackPosixThread::ThreadHandler : start
Sun Jan  2 17:21:42 2022: Jack: playback device hw:0
Sun Jan  2 17:21:42 2022: Jack: capture device hw:0
Sun Jan  2 17:21:42 2022: Jack: playback device hw:0
Sun Jan  2 17:21:42 2022: Jack: apparent rate = 48000
Sun Jan  2 17:21:42 2022: Jack: frames per period = 512
Sun Jan  2 17:21:42 2022: Jack: JackDriver::Open capture_driver_name = hw:0
Sun Jan  2 17:21:42 2022: Jack: JackDriver::Open playback_driver_name = hw:0
Sun Jan  2 17:21:42 2022: Jack: Check protocol client = 9 server = 9
Sun Jan  2 17:21:42 2022: Jack: JackEngine::ClientInternalOpen: name = system
Sun Jan  2 17:21:42 2022: Jack: JackEngine::AllocateRefNum ref = 0
Sun Jan  2 17:21:42 2022: Jack: JackLinuxFutex::Allocate name = jack_sem.1000_default_system val = 0
Sun Jan  2 17:21:42 2022: Jack: JackEngine::NotifyAddClient: name = system
Sun Jan  2 17:21:42 2022: Jack: JackGraphManager::SetBufferSize size = 512
Sun Jan  2 17:21:42 2022: Jack: JackConnectionManager::DirectConnect first: ref1 = 0 ref2 = 0
Sun Jan  2 17:21:42 2022: Jack: JackGraphManager::ConnectRefNum cur_index = 0 ref1 = 0 ref2 = 0
Sun Jan  2 17:21:42 2022: Jack: JackDriver::SetupDriverSync driver sem in flush mode
Sun Jan  2 17:21:42 2022: Acquired audio card Audio0
Sun Jan  2 17:21:42 2022: creating alsa driver ... hw:0|-|512|2|48000|0|0|nomon|swmeter|-|32bit
Sun Jan  2 17:21:43 2022: configuring for 48000Hz, period = 512 frames (10.7 ms), buffer = 2 periods
Sun Jan  2 17:21:43 2022: ALSA: final selected sample format for playback: 24bit little-endian
Sun Jan  2 17:21:43 2022: ERROR: ALSA: cannot set period size to 512 frames for playback
Sun Jan  2 17:21:43 2022: ERROR: ALSA: cannot configure playback channel
Sun Jan  2 17:21:43 2022: Jack: JackDriver::Close
Sun Jan  2 17:21:43 2022: Jack: JackConnectionManager::DirectDisconnect last: ref1 = 0 ref2 = 0
Sun Jan  2 17:21:43 2022: Jack: JackGraphManager::DisconnectRefNum cur_index = 0 ref1 = 0 ref2 = 0
Sun Jan  2 17:21:43 2022: Jack: JackEngine::ClientInternalClose ref = 0
Sun Jan  2 17:21:43 2022: Jack: JackEngine::ClientCloseAux ref = 0
Sun Jan  2 17:21:43 2022: Jack: JackGraphManager::RemoveAllPorts ref = 0
Sun Jan  2 17:21:43 2022: Released audio card Audio0
Sun Jan  2 17:21:43 2022: Jack: ~JackDriver
Sun Jan  2 17:21:43 2022: ERROR: Cannot initialize driver
Sun Jan  2 17:21:43 2022: Jack: no message buffer overruns
Sun Jan  2 17:21:43 2022: Jack: JackPosixThread::Stop
Sun Jan  2 17:21:43 2022: Jack: JackPosixThread::ThreadHandler : exit
Sun Jan  2 17:21:43 2022: ERROR: JackServer::Open failed with -1
Sun Jan  2 17:21:43 2022: Jack: Succeeded in unlocking 107341340 byte memory area
Sun Jan  2 17:21:43 2022: Jack: JackShmMem::delete size = 0 index = 0
Sun Jan  2 17:21:43 2022: Jack: ~JackDriver
Sun Jan  2 17:21:43 2022: Jack: Succeeded in unlocking 1196 byte memory area
Sun Jan  2 17:21:43 2022: Jack: JackShmMem::delete size = 0 index = 1
Sun Jan  2 17:21:43 2022: Jack: Cleaning up shared memory
Sun Jan  2 17:21:43 2022: Jack: Cleaning up files
Sun Jan  2 17:21:43 2022: Jack: Unregistering server `default'
Sun Jan  2 17:21:43 2022: ERROR: Failed to open server
Sun Jan  2 17:21:44 2022: Saving settings to "/home/laurent/.config/jack/conf.xml" ...
17:21:46.874 Could not connect to JACK server as client. - Overall operation failed. - Unable to connect to server. Please check the messages window for more info.
Cannot connect to server socket err = No such file or directory
Cannot connect to server request channel
jack server is not running or cannot be started
JackShmReadWritePtr::~JackShmReadWritePtr - Init not done for -1, skipping unlock
JackShmReadWritePtr::~JackShmReadWritePtr - Init not done for -1, skipping unlock