Sbt compile throw NumberFormatException for input "vars" - scala

Question

Edit : I know now that I need to access Google Oauth2 authentication with some sort of sbt configuration but I can't find how on official documention...
We recently added a Google Authentication and it seems that instead of loading the sha1, it loads the google auth HTML page.
Anyone knows how to add Google SSO credentials to sbt credentials ? I already have Nexus credentials defined and it was working fine before Google SSO was added
Initial Question :
I launched a new Scala project with sbt.version = 1.4.9 and scalaVersion := "2.12.14" and got the following error.
I tried :
Reinstalling Scala, Sbt, Java.
Changing their version (sbt 1.3.X, 1.4.X / Scala 2.11.X, 2.12.X / Java 8 and 11 openjdk)
Removing everything except the simplest build.sbt (name and scala version),
Removing coursier cache and ivy cache,
Rebooting my computer (MacOS)
Nothing worked...
sbt:quality-orc-delta> compile
[info] Updating
[info] Resolved dependencies
[error] stack trace is suppressed; run last update for the full output
[error] (update) java.lang.NumberFormatException: For input string: "vars"
[error] Total time: 1 s, completed 19 May 2022, 06:54:38
sbt:quality-orc-delta> last update
[debug] not up to date. inChanged = true, force = false
[debug] Updating ...
[info] Updating
[info] Resolved dependencies
[error] java.lang.NumberFormatException: For input string: "vars"
[error] at java.base/java.lang.NumberFormatException.forInputString(NumberFormatException.java:65)
[error] at java.base/java.lang.Integer.parseInt(Integer.java:652)
[error] at java.base/java.math.BigInteger.<init>(BigInteger.java:534)
[error] at lmcoursier.internal.shaded.coursier.cache.CacheChecksum$$anonfun$findChecksum$1.applyOrElse(CacheChecksum.scala:22)
[error] at lmcoursier.internal.shaded.coursier.cache.CacheChecksum$$anonfun$findChecksum$1.applyOrElse(CacheChecksum.scala:20)
[error] at scala.collection.TraversableOnce.collectFirst(TraversableOnce.scala:172)
[error] at scala.collection.TraversableOnce.collectFirst$(TraversableOnce.scala:159)
[error] at scala.collection.AbstractTraversable.collectFirst(Traversable.scala:108)
[error] at lmcoursier.internal.shaded.coursier.cache.CacheChecksum$.findChecksum(CacheChecksum.scala:20)
[error] at lmcoursier.internal.shaded.coursier.cache.CacheChecksum$.$anonfun$parseChecksumAlternative$2(CacheChecksum.scala:31)
[error] at scala.Option.orElse(Option.scala:447)
[error] at lmcoursier.internal.shaded.coursier.cache.CacheChecksum$.parseChecksumAlternative(CacheChecksum.scala:30
[error] at lmcoursier.internal.shaded.coursier.cache.CacheChecksum$.$anonfun$parseRawChecksum$1(CacheChecksum.scala:52)
[error] at scala.Option.orElse(Option.scala:447)
[error] at lmcoursier.internal.shaded.coursier.cache.CacheChecksum$.parseRawChecksum(CacheChecksum.scala:52)
[error] at lmcoursier.internal.shaded.coursier.cache.FileCache.$anonfun$validateChecksum$4(FileCache.scala:677)
[error] at scala.concurrent.Future$.$anonfun$apply$1(Future.scala:659)
[error] at scala.util.Success.$anonfun$map$1(Try.scala:255)
[error] at scala.util.Success.map(Try.scala:213)
[error] at scala.concurrent.Future.$anonfun$map$1(Future.scala:292)
[error] at scala.concurrent.impl.Promise.liftedTree1$1(Promise.scala:33)
[error] at scala.concurrent.impl.Promise.$anonfun$transform$1(Promise.scala:33)
[error] at scala.concurrent.impl.CallbackRunnable.run(Promise.scala:64)
[error] at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1128)
[error] at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:628)
[error] at java.base/java.lang.Thread.run(Thread.java:834)
[error] (update) java.lang.NumberFormatException: For input string: "vars"
Any help is welcome.