If you press play, you have to click it twice, otherwise the "play" icon will not update to the "pause" icon.

This issue is reproduced on:

 Chrome 83.0.4103.116 (Official Build) (64-bit). Reproductivity chance: every single time.

Windowd Firefox 78.0.1 (64-bit). Chance - half of the time.

Also, the waveforms do not update during track change as well when this happens

https://h-var.com/album/2015-psychectomia/

I have cleared all my chrome errors. Thank you

My certificate is correctly installed. Will you be able to fix this problem? Thank you.

there are also a lot of error in your chrome console too:

A cookie associated with a cross-site resource at http://youtube.com/ was set without the `SameSite` attribute. A future release of Chrome will only deliver cookies with cross-site requests if they are set with `SameSite=None` and `Secure`. You can review cookies in developer tools under Application>Storage>Cookies and see more details at https://www.chromestatus.com/feature/5088147346030592 and https://www.chromestatus.com/feature/5633521622188032.
(index):1 A cookie associated with a cross-site resource at https://youtube.com/ was set without the `SameSite` attribute. A future release of Chrome will only deliver cookies with cross-site requests if they are set with `SameSite=None` and `Secure`. You can review cookies in developer tools under Application>Storage>Cookies and see more details at https://www.chromestatus.com/feature/5088147346030592 and https://www.chromestatus.com/feature/5633521622188032.
(index):1750 GET https://www.googleadservices.com/pagead/conversion.js net::ERR_CERT_AUTHORITY_INVALID
d946a440cc6e8a9dea621d600dc68688.js:1 JQMIGRATE: Migrate is installed, version 1.4.1
www-embed-player.js:444 GET https://googleads.g.doubleclick.net/pagead/id net::ERR_BLOCKED_BY_CLIENT
hf @ www-embed-player.js:444
gf @ www-embed-player.js:431
(anonymous) @ www-embed-player.js:765
P @ www-embed-player.js:319
yj @ www-embed-player.js:762
De @ www-embed-player.js:775
Kj @ www-embed-player.js:780
Lj @ www-embed-player.js:781
(anonymous) @ www-embed-player.js:841
(anonymous) @ DrP_VNhaSxI?feature=oembed&start&end&wmode=opaque&loop=0&controls=1&mute=0&rel=0&modestbranding=0:13
www-embed-player.js:622 GET https://static.doubleclick.net/instream/ad_status.js net::ERR_BLOCKED_BY_CLIENT
Lh @ www-embed-player.js:622
Ih @ www-embed-player.js:619
Hh @ www-embed-player.js:618
Qh @ www-embed-player.js:627
(anonymous) @ www-embed-player.js:843
(anonymous) @ DrP_VNhaSxI?feature=oembed&start&end&wmode=opaque&loop=0&controls=1&mute=0&rel=0&modestbranding=0:13
stats.g.doubleclick.net/r/collect?v=1&aip=1&t=dc&_r=3&tid=UA-111469585-1&cid=1239239629.1593925834&jid=2097661479&_gid=823342650.1594048032&gjid=1781038135&_v=j83&z=10188358:1 GET https://stats.g.doubleclick.net/r/collect?v=1&aip=1&t=dc&_r=3&tid=UA-111469585-1&cid=1239239629.1593925834&jid=2097661479&_gid=823342650.1594048032&gjid=1781038135&_v=j83&z=10188358 net::ERR_CERT_AUTHORITY_INVALID
Image (async)
ta @ analytics.js:25
wc @ analytics.js:34
ba @ analytics.js:34
Sa @ analytics.js:39
Ha.D @ analytics.js:37
pc.send @ analytics.js:75
X.b.<computed> @ analytics.js:49
Z.v @ analytics.js:83
Z.D @ analytics.js:82
N.N @ analytics.js:85
rc @ analytics.js:75
z @ analytics.js:75
(anonymous) @ analytics.js:85
(anonymous) @ analytics.js:85
(index):1 A cookie associated with a cross-site resource at https://facebook.com/ was set without the `SameSite` attribute. A future release of Chrome will only deliver cookies with cross-site requests if they are set with `SameSite=None` and `Secure`. You can review cookies in developer tools under Application>Storage>Cookies and see more details at https://www.chromestatus.com/feature/5088147346030592 and https://www.chromestatus.com/feature/5633521622188032.

I have cleared all my chrome errors. Thank you so much!

I will try to gladly provide you with all the necessary information. Please, just ask what you need, and I'll get it for you. Would you like me to copy and paste any js files you request? Thank you!

iron-audioplayer.js:177 Uncaught TypeError: Cannot read property 'list' of null
    at iron-audioplayer.js:177
    at 00.wavesurfer.min.js:4
    at Array.forEach (<anonymous>)
    at Object.fireEvent (00.wavesurfer.min.js:4)
    at 00.wavesurfer.min.js:4
    at 00.wavesurfer.min.js:4
    at Array.forEach (<anonymous>)
    at Object.fireEvent (00.wavesurfer.min.js:4)
    at b (00.wavesurfer.min.js:4)
    at 00.wavesurfer.min.js:4

https://www.paste.org/107540

Hi I didn't purchase your plugin yet, but I might in the future. I hope you can find a way to fix this js error on your own without the need to access the website. Thank you! I will be monitoring the changelog for your plugin.