diff --git a/data/txt/sha256sums.txt b/data/txt/sha256sums.txt
index c73eeacc6..286c958a3 100644
--- a/data/txt/sha256sums.txt
+++ b/data/txt/sha256sums.txt
@@ -181,13 +181,13 @@ c9d1f64648062d7962caf02c4e2e7d84e8feb2a14451146f627112aae889afcd  lib/core/dump.
 3d308440fb01d04b5d363bfbe0f337756b098532e5bb7a1c91d5213157ec2c35  lib/core/log.py
 2a06dc9b5c17a1efdcdb903545729809399f1ee96f7352cc19b9aaa227394ff3  lib/core/optiondict.py
 3ca1a6759c196aa104130af0ed47826cd01009beaa3fa836a25faabfec7dd18e  lib/core/option.py
-866e93c93541498ecce70125037bdd376d78188e481d225f81843f21f4797d8c  lib/core/patch.py
+fd449fe2c707ce06c929fc164cbabb3342f3e4e2b86c06f3efc1fc09ac98a25a  lib/core/patch.py
 85f10c6195a3a675892d914328173a6fb6a8393120417a2f10071c6e77bfa47d  lib/core/profiling.py
 c4bfb493a03caf84dd362aec7c248097841de804b7413d0e1ecb8a90c8550bc0  lib/core/readlineng.py
 d1bd70c1a55858495c727fbec91e30af267459c8f64d50fabf9e4ee2c007e920  lib/core/replication.py
 1d0f80b0193ac5204527bfab4bde1a7aee0f693fd008e86b4b29f606d1ef94f3  lib/core/revision.py
 d2eb8e4b05ac93551272b3d4abfaf5b9f2d3ac92499a7704c16ed0b4f200db38  lib/core/session.py
-a7498d5d6e0e51b8a8458c85dee52c20aeb815412f65dca979001ff7d78354b1  lib/core/settings.py
+2e39b8c1d30ae42b32cc94325f1f85780e2a81cec9ea9263446d10500f81f5db  lib/core/settings.py
 1c5eab9494eb969bc9ce118a2ea6954690c6851cbe54c18373c723b99734bf09  lib/core/shell.py
 4eea6dcf023e41e3c64b210cb5c2efc7ca893b727f5e49d9c924f076bb224053  lib/core/subprocessng.py
 cdd352e1331c6b535e780f6edea79465cb55af53aa2114dcea0e8bf382e56d1a  lib/core/target.py
@@ -476,7 +476,7 @@ baaf7a29a1fe07e7cecc7fb1b1f6a6f327b12154b8d5619e9808b2cf43ad2198  README.md
 535ab6ac8b8441a3758cee86df3e68abec8b43eee54e32777967252057915acc  sqlmapapi.py
 168309215af7dd5b0b71070e1770e72f1cbb29a3d8025143fb8aa0b88cd56b62  sqlmapapi.yaml
 c43cc0dd5b4026083ad420c04705a031504aa503cc99ab2236010c4cbd472d39  sqlmap.conf
-cf35266a47f5acfd5f0c7dfc4443bf46480cdc2e1ae9cfc2014602e798e91d24  sqlmap.py
+822b706e791eba9b994b08e7600a3adfc3843d360437edfa0bfd588a1f58a13c  sqlmap.py
 82caac95182ac5cae02eb7d8a2dc07e71389aeae6b838d3d3f402c9597eb086a  tamper/0eunion.py
 bc8f5e638578919e4e75a5b01a84b47456bac0fd540e600975a52408a3433460  tamper/apostrophemask.py
 c9c3d71f11de0140906d7b4f24fadb9926dc8eaf5adab864f8106275f05526ce  tamper/apostrophenullencode.py
diff --git a/lib/core/patch.py b/lib/core/patch.py
index 2d29fb6ea..26c9b354f 100644
--- a/lib/core/patch.py
+++ b/lib/core/patch.py
@@ -99,6 +99,15 @@ def dirtyPatches():
         else:
             os.urandom = lambda size: "".join(chr(random.randint(0, 255)) for _ in xrange(size))
 
+    # Reference: https://github.com/sqlmapproject/sqlmap/issues/5929
+    try:
+        global collections
+        if not hasattr(collections, "MutableSet"):
+            import collections.abc
+            collections.MutableSet = collections.abc.MutableSet
+    except ImportError:
+        pass
+
     # Reference: https://github.com/sqlmapproject/sqlmap/issues/5727
     # Reference: https://stackoverflow.com/a/14076841
     try:
diff --git a/lib/core/settings.py b/lib/core/settings.py
index 820a6c064..0d8853e69 100644
--- a/lib/core/settings.py
+++ b/lib/core/settings.py
@@ -19,7 +19,7 @@ from lib.core.enums import OS
 from thirdparty import six
 
 # sqlmap version (<major>.<minor>.<month>.<monthly commit>)
-VERSION = "1.9.7.6"
+VERSION = "1.9.7.7"
 TYPE = "dev" if VERSION.count('.') > 2 and VERSION.split('.')[-1] != '0' else "stable"
 TYPE_COLORS = {"dev": 33, "stable": 90, "pip": 34}
 VERSION_STRING = "sqlmap/%s#%s" % ('.'.join(VERSION.split('.')[:-1]) if VERSION.count('.') > 2 and VERSION.split('.')[-1] == '0' else VERSION, TYPE)
diff --git a/sqlmap.py b/sqlmap.py
index 8ca24fff4..646208086 100755
--- a/sqlmap.py
+++ b/sqlmap.py
@@ -513,7 +513,7 @@ def main():
             logger.critical(errMsg)
             raise SystemExit
 
-        elif "'cryptography' package is required":
+        elif "'cryptography' package is required" in excMsg:
             errMsg = "third-party library 'cryptography' is required"
             logger.critical(errMsg)
             raise SystemExit
@@ -548,7 +548,7 @@ def main():
         errMsg = maskSensitiveData(errMsg)
         excMsg = maskSensitiveData(excMsg)
 
-        if conf.get("api") or not valid or kb.lastCtrlCTime:
+        if conf.get("api") or not valid or kb.get("lastCtrlCTime"):
             logger.critical("%s\n%s" % (errMsg, excMsg))
         else:
             logger.critical(errMsg)