Main tracking thread appears to be https://feedback.wizards.com/forums/918667-mtg-arena-bugs-product-suggestions/suggestions/46137286-store-not-working

Based on the theory that this is due to undistributed artifacts within the Xsolla plugin for M1 Macs, I found a "fix": You can uninstall MTGA and then reinstall it, and the store will work again (presumably until the next update only).

I have this issue as well. I'm on an M1.

Makes playing a bit impossible, no?

Seems like a recent update did not properly deploy ARM-core shared library artificats:

DllNotFoundException: ZFBrowser failed to load /Users/Shared/Epic Games/MagicTheGathering/MTGA.app/Contents/Plugins/libZFProxyWeb.dylib: dlopen(/Users/Shared/Epic Games/MagicTheGathering/MTGA.app/Contents/Plugins/libZFProxyWeb.dylib, 0x0001): tried: '/Users/Shared/Epic Games/MagicTheGathering/MTGA.app/Contents/Plugins/libZFProxyWeb.dylib' (mach-o file, but is an incompatible architecture (have 'x86_64', need 'arm64')), '/System/Volumes/Preboot/Cryptexes/OS/Users/Shared/Epic Games/MagicTheGathering/MTGA.app/Contents/Plugins/libZFProxyWeb.dylib' (no such file), '/Users/Shared/Epic Games/MagicTheGathering/MTGA.app/Contents/Plugins/libZFProxyWeb.dylib' (mach-o file, but is an incompatible architecture (have 'x86_64', need 'arm64')), '/Users/Shared/Epic Games/MagicTheGathering/MTGA.app/Contents/PlugIns/libZFProxyWeb.dylib' (mach-o file, but is an incompatible architecture (have 'x86_64', need 'arm64')), '/System/Volumes/Preboot/Cryptexes/OS/Users/Shared/Epic Games/MagicTheGathering/MTGA.app/Contents/PlugIns/libZFProxyWeb.dylib' (no such file), '/Users/Shared/Epic Games/MagicTheGathering/MTGA.app/Contents/PlugIns/libZFProxyWeb.dylib' (mach-o file, but is an incompatible architecture (have 'x86_64', need 'arm64'))
at ZenFulcrum.EmbeddedBrowser.BrowserNative.OpenLib (System.String name) [0x00000] in <00000000000000000000000000000000>:0
at ZenFulcrum.EmbeddedBrowser.BrowserNative.HandLoadSymbols (System.String binariesPath) [0x00000] in <00000000000000000000000000000000>:0
at ZenFulcrum.EmbeddedBrowser.Browser.Resize (System.Int32 width, System.Int32 height) [0x00000] in <00000000000000000000000000000000>:0
at XsollaMainBrowser.Init (XsollaConnection parent) [0x00000] in <00000000000000000000000000000000>:0
at XsollaConnection.OpenXsollaBrowser (System.String xsollaToken, System.String redirect) [0x00000] in <00000000000000000000000000000000>:0
at XsollaStoreManager+<PurchaseRMTItemYield>d__2.MoveNext () [0x00000] in <00000000000000000000000000000000>:0
at UnityEngine.SetupCoroutine.InvokeMoveNext (System.Collections.IEnumerator enumerator, System.IntPtr returnValueAddress) [0x00000] in <00000000000000000000000000000000>:0

Yup still is an issue, never been better or working for me.

This has just started happening to me and it's incredibly frustrating.

I just noticed this happened to me as well on a mac. Gonna skip out on drafting Modern Horizons because of it, so frustrating.

the irony of this consistently happening in the store when i'm _wanting_ to give wotc my money ¯\_(ツ)_/¯

i'm guessing it's an issue connecting to their 3rd party payment vendor, but this seems like a problem they might want to prioritize fixing, because as OP said: it's been like this for years

(macOS/epic)

I'm on Mac and having this issue as well. I only just noticed it over this weekend though so I'm not sure how long it's been an issue.