prover: fix loading of degrees (#1503)

Co-authored-by: georgehao <georgehao@users.noreply.github.com>

common/libzkp/impl/src/verifier.rs

@@ -44,12 +44,15 @@ static mut PARAMS_MAP: OnceCell<BTreeMap<u32, ParamsKZG<Bn256>>> = OnceCell::new
 pub fn init(config: VerifierConfig) {
     let low_conf = config.low_version_circuit;
 
-    // params should be shared between low and high
-    let mut params_map = BTreeMap::new();
-    for degree in [
+    std::env::set_var("SCROLL_PROVER_ASSETS_DIR", &low_conf.assets_path);
+    let params_degrees = [
         *prover_v4::config::LAYER2_DEGREE,
         *prover_v4::config::LAYER4_DEGREE,
-    ] {
+    ];
+
+    // params should be shared between low and high
+    let mut params_map = BTreeMap::new();
+    for degree in params_degrees {
         if let std::collections::btree_map::Entry::Vacant(e) = params_map.entry(degree) {
             match load_params(&low_conf.params_path, degree, None) {
                 Ok(params) => {

common/version/version.go

@@ -5,7 +5,7 @@ import (
 	"runtime/debug"
 )
 
-var tag = "v4.4.50"
+var tag = "v4.4.51"
 
 var commit = func() string {
 	if info, ok := debug.ReadBuildInfo(); ok {